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Blazing Spirulina

#39d59b
Notes

Blazing Spirulina (#39D59B) is a true teal with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (158°, 65%, 53%) 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#39d59b
RGB
rgb(57, 213, 155)
HSL
hsl(158, 65%, 53%)
HWB
hwb(158 22% 16%)
OKLCH
oklch(77.9% 0.153 163.2)
HSV
hsv(158, 73%, 84%)
LAB
lab(76.57% -53.38 17.38)
LCH
lch(76.57% 56.14 161.97)
CMYK
cmyk(73%, 0%, 27%, 16%)

Etymology

Blazing
adjective

Old English blǣse, flame — present-participle of blaze. As a color modifier, blazing implies a saturated-and-bright-flaming quality, the bright color of Yule-log and Bonfire-Night large-flame fire-emission. Sits at the bright-and-warm end of the grid, parallel to flaming and scorching in usage.

Spirulina
noun

Arthrospira platensis, the cyanobacterium harvested from alkaline lakes since the time of the Aztecs and now sold globally as a nutritional supplement and natural food coloring. The color refers to fresh-dried spirulina powder in a small bowl: a saturated, slightly cool deep blue-green with the matte finish of dehydrated cyanobacterial cells. Cooler than algae.

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.

#39d59b
Original
#d1c598
Protanopia
#beb79f
Deuteranopia
#00d5c5
Tritanopia
#b0b0b0
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).
Failon White
1.88:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
11.16:1

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