#91E591
Closest named color: Light Green (#90EE90). oklch(84.8% 0.141 144.2), rgb(145, 229, 145).
Aa
Black text reads best on this color (13.82:1).
About this color
#91E591 is a light, vivid green. In OKLCH its lightness is 85%, its chroma 0.141 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Green (#90EE90), ΔE 0.025 away. Black text reads best on it, at 13.82:1.
| Hue family | Greens |
| Lightness | light (85%) |
| Chroma | vivid (0.141) |
| Temperature | in between |
| Nearest name | Light Green (#90EE90) |
| Black text | 13.82:1 |
| White text | 1.51:1 |
Values
| HEX | #91E591 |
| RGB | rgb(145, 229, 145) |
| HSL | hsl(120, 62%, 73%) |
| OKLCH | oklch(84.8% 0.141 144.2) |
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 #91E591 | 1.51:1 | Fails | Lc -27.2 | Dividers and decoration only |
| Black text on #91E591 | 13.82:1 | AAA | Lc 79.7 | Fine for body text |
| #91E591 text on white | 1.51:1 | Fails | Lc 24.0 | Dividers and decoration only |
| #91E591 text on black | 13.82:1 | AAA | Lc -79.1 | Fine for body text |
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 200.
-
Step 50
50
#ECFAEC
oklch(97.1% 0.024 145.4)
-
Step 100
100
#D5F4D4
oklch(93.6% 0.054 144.3)
-
Step 200
200 (this color)
#91E591
oklch(84.8% 0.141 144.2)
-
Step 300
300
#6DDE70
oklch(80.9% 0.182 144.2)
-
Step 400
400
#00C22C
oklch(70.7% 0.228 144.2)
-
Step 500
500
#00A624
oklch(63% 0.203 144.2)
-
Step 600
600
#008C1D
oklch(55.6% 0.179 144.2)
-
Step 700
700
#007617
oklch(49.1% 0.158 144.3)
-
Step 800
800
#006111
oklch(42.8% 0.138 144.2)
-
Step 900
900
#00510C
oklch(37.8% 0.122 144.2)
-
Step 950
950
#003005
oklch(26.9% 0.086 144.4)
#91E591 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) | #E8D78B | 0.107 |
| Deuteranopia (no green cones) | #DCCE96 | 0.107 |
| Tritanopia (no blue cones) | #88E0D0 | 0.088 |
| Achromatopsia (no color) | #D1D1D1 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91E591
#91E591
oklch(84.8% 0.141 144.2)
- #F9AEFF
#F9AEFF
oklch(84.8% 0.135 324.1)
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 #91E591, closest first.
No curated palette has a color within ΔE 0.04 of #91E591.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Green #90EE90 ΔE 0.025
- Hospital Green #9BE5AA ΔE 0.035
- Light Grey Green #B7E1A1 ΔE 0.051
- Seafoam Green #7AF9AB ΔE 0.053
- Seafoam #80F9AD ΔE 0.053
- Pale Olive Green #B1D27B ΔE 0.055
- Light Blue Green #7EFBB3 ΔE 0.060
- Pale Green #98FB98 ΔE 0.060
Use #91E591 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.