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Vitreous Sencha

#28a594
Notes

Vitreous Sencha (#28A594) is a true teal with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (172°, 61%, 40%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#28a594
RGB
rgb(40, 165, 148)
HSL
hsl(172, 61%, 40%)
HWB
hwb(172 16% 35%)
OKLCH
oklch(65.2% 0.108 181.4)
P3
color(display-p3 0.3213 0.6378 0.5814)
HSV
hsv(172, 76%, 65%)
LAB
lab(61.22% -37.07 -0.76)
LCH
lch(61.22% 37.08 181.17)
CMYK
cmyk(76%, 0%, 10%, 35%)

Etymology

Vitreous
adjective

Latin vitreus, glass-like — derived from vitrum (glass). As a color modifier, vitreous implies a clear-and-glassy quality where the hue carries the optical clarity of polished crown-glass. Sits at the crisp-and-clear end of the grid, parallel to pellucid and crystalline in usage.

Sencha
noun

The Japanese steamed-leaf green tea — the most-consumed Japanese tea, distinct from matcha (powdered) and gyokuro (shaded-grown). The color refers to fresh-brewed sencha in a porcelain cup: a saturated, slightly cool deep blue-green with the optical clarity of steamed-leaf green-tea liquor.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

Click any swatch to explore

Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#28a594
Original
#9d9b93
Protanopia
#8c8f96
Deuteranopia
#00a8a0
Tritanopia
#898989
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon White
3.04:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
6.90:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##28A594
Display P3
Display P3
color(display-p3 0.3213 0.6378 0.5814)
P3 has subtle headroomOKLCH chroma 0.108

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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