#91CD57
Closest named color: Yellow Green (#9ACD32). oklch(78.2% 0.162 131.7), rgb(145, 205, 87).
Aa
Black text reads best on this color (11.07:1).
About this color
#91CD57 is a light, vivid green. In OKLCH its lightness is 78%, its chroma 0.162 and its hue 132°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Yellow Green (#9ACD32), ΔE 0.027 away. Black text reads best on it, at 11.07:1.
| Hue family | Greens |
| Lightness | light (78%) |
| Chroma | vivid (0.162) |
| Temperature | in between |
| Nearest name | Yellow Green (#9ACD32) |
| Black text | 11.07:1 |
| White text | 1.89:1 |
Values
| HEX | #91CD57 |
| RGB | rgb(145, 205, 87) |
| HSL | hsl(91, 54%, 57%) |
| OKLCH | oklch(78.2% 0.162 131.7) |
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 #91CD57 | 1.89:1 | Fails | Lc -40.2 | Non-text elements, placeholder text |
| Black text on #91CD57 | 11.07:1 | AAA | Lc 68.0 | Content text, not long reading |
| #91CD57 text on white | 1.89:1 | Fails | Lc 35.9 | Non-text elements, placeholder text |
| #91CD57 text on black | 11.07:1 | AAA | Lc -66.6 | 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
#F0F9EA
oklch(97.1% 0.022 132.5)
-
Step 100
100
#DFF1D1
oklch(93.6% 0.046 131.4)
-
Step 200
200
#C4E6A8
oklch(88.5% 0.09 131.4)
-
Step 300
300 (this color)
#91CD57
oklch(78.2% 0.162 131.7)
-
Step 400
400
#71B800
oklch(70.8% 0.196 131.8)
-
Step 500
500
#609E00
oklch(63.2% 0.175 131.8)
-
Step 600
600
#508400
oklch(55.5% 0.153 131.6)
-
Step 700
700
#426F00
oklch(49% 0.136 131.8)
-
Step 800
800
#365B00
oklch(42.7% 0.117 131.5)
-
Step 900
900
#2C4C00
oklch(37.7% 0.104 131.6)
-
Step 950
950
#182D00
oklch(26.9% 0.074 131.6)
#91CD57 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) | #D5BF4B | 0.091 |
| Deuteranopia (no green cones) | #CDBB5F | 0.092 |
| Tritanopia (no blue cones) | #93C5B3 | 0.122 |
| Achromatopsia (no color) | #BCBCBC | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91CD57
#91CD57
oklch(78.2% 0.162 131.7)
- #D99AFF
#D99AFF
oklch(78.3% 0.153 311.9)
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 #91CD57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Yellow Green #9ACD32 ΔE 0.027
- Slime Green #99CC04 ΔE 0.040
- Pea #A4BF20 ΔE 0.044
- Apple #6ECB3C ΔE 0.047
- Light Olive Green #A4BE5C ΔE 0.047
- Light Moss Green #A6C875 ΔE 0.048
- Fresh Green #69D84F ΔE 0.049
- Apple Green #76CD26 ΔE 0.049
Use #91CD57 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.