#90D591
Closest named color: Pale Olive Green (#B1D27B). oklch(81% 0.117 144.7), rgb(144, 213, 145).
Aa
Black text reads best on this color (12.11:1).
About this color
#90D591 is a light, moderately saturated green. In OKLCH its lightness is 81%, its chroma 0.117 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Pale Olive Green (#B1D27B), ΔE 0.040 away. Black text reads best on it, at 12.11:1.
| Hue family | Greens |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Pale Olive Green (#B1D27B) |
| Black text | 12.11:1 |
| White text | 1.73:1 |
Values
| HEX | #90D591 |
| RGB | rgb(144, 213, 145) |
| HSL | hsl(121, 45%, 70%) |
| OKLCH | oklch(81% 0.117 144.7) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #90D591 | 1.73:1 | Fails | Lc -35.2 | Non-text elements, placeholder text |
| Black text on #90D591 | 12.11:1 | AAA | Lc 72.5 | Content text, not long reading |
| #90D591 text on white | 1.73:1 | Fails | Lc 31.3 | Non-text elements, placeholder text |
| #90D591 text on black | 12.11:1 | AAA | Lc -71.4 | Content text, not long reading |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 300.
-
Step 50
50
#EFF8EF
oklch(97% 0.015 145.5)
-
Step 100
100
#DDF0DC
oklch(93.6% 0.033 143.9)
-
Step 200
200
#BFE5BF
oklch(88.5% 0.065 145)
-
Step 300
300 (this color)
#90D591
oklch(81% 0.117 144.7)
-
Step 400
400
#42BD4D
oklch(70.6% 0.187 144.7)
-
Step 500
500
#00A62A
oklch(63% 0.2 144.8)
-
Step 600
600
#008C22
oklch(55.6% 0.176 144.8)
-
Step 700
700
#00761B
oklch(49.2% 0.156 144.8)
-
Step 800
800
#006114
oklch(42.8% 0.136 144.7)
-
Step 900
900
#00510F
oklch(37.8% 0.12 144.7)
-
Step 950
950
#003006
oklch(26.9% 0.085 144.8)
#90D591 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #D8C98D | 0.092 |
| Deuteranopia (no green cones) | #CDC295 | 0.090 |
| Tritanopia (no blue cones) | #89D1C3 | 0.072 |
| Achromatopsia (no color) | #C5C5C5 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90D591
#90D591
oklch(81% 0.117 144.7)
- #E7A6EB
#E7A6EB
oklch(80.9% 0.118 324.6)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #90D591, closest first.
No curated palette has a color within ΔE 0.04 of #90D591.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pale Olive Green #B1D27B ΔE 0.040
- Light Moss Green #A6C875 ΔE 0.042
- Pale Olive #B9CC81 ΔE 0.049
- Hospital Green #9BE5AA ΔE 0.050
- Greenish Tan #BCCB7A ΔE 0.054
- Seafoam Blue #78D1B6 ΔE 0.056
- Medium Aquamarine #66CDAA ΔE 0.058
- Pale Teal #82CBB2 ΔE 0.061
Use #90D591 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.