#90BC51
Closest named color: Light Olive Green (#A4BE5C). oklch(74.1% 0.145 128.2), rgb(144, 188, 81).
Aa
Black text reads best on this color (9.49:1).
About this color
#90BC51 is a medium-light, vivid green. In OKLCH its lightness is 74%, its chroma 0.145 and its hue 128°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Olive Green (#A4BE5C), ΔE 0.030 away. Black text reads best on it, at 9.49:1.
| Hue family | Greens |
| Lightness | medium-light (74%) |
| Chroma | vivid (0.145) |
| Temperature | in between |
| Nearest name | Light Olive Green (#A4BE5C) |
| Black text | 9.49:1 |
| White text | 2.21:1 |
Values
| HEX | #90BC51 |
| RGB | rgb(144, 188, 81) |
| HSL | hsl(85, 44%, 53%) |
| OKLCH | oklch(74.1% 0.145 128.2) |
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 #90BC51 | 2.21:1 | Fails | Lc -48.2 | Large or bold text, headings |
| Black text on #90BC51 | 9.49:1 | AAA | Lc 60.5 | Content text, not long reading |
| #90BC51 text on white | 2.21:1 | Fails | Lc 43.4 | Non-text elements, placeholder text |
| #90BC51 text on black | 9.49:1 | AAA | Lc -58.7 | Large or bold text, headings |
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 400.
-
Step 50
50
#F3F7EF
oklch(97.1% 0.011 128.6)
-
Step 100
100
#E5EEDB
oklch(93.7% 0.027 127.7)
-
Step 200
200
#CFE0BD
oklch(88.5% 0.05 128.6)
-
Step 300
300
#AFCC8D
oklch(80.8% 0.09 128.4)
-
Step 400
400 (this color)
#90BC51
oklch(74.1% 0.145 128.2)
-
Step 500
500
#6B9B00
oklch(63.1% 0.166 128.3)
-
Step 600
600
#5A8200
oklch(55.6% 0.145 128)
-
Step 700
700
#4B6D00
oklch(49% 0.128 127.9)
-
Step 800
800
#3C5A00
oklch(42.8% 0.113 128.5)
-
Step 900
900
#324B00
oklch(37.8% 0.099 128.2)
-
Step 950
950
#1C2C00
oklch(26.9% 0.07 127.9)
#90BC51 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) | #C4B046 | 0.073 |
| Deuteranopia (no green cones) | #BEAD58 | 0.074 |
| Tritanopia (no blue cones) | #94B4A5 | 0.115 |
| Achromatopsia (no color) | #AEAEAE | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90BC51
#90BC51
oklch(74.1% 0.145 128.2)
- #C590F1
#C590F1
oklch(74.1% 0.146 308.4)
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 #90BC51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Olive Green #A4BE5C ΔE 0.030
- Avocado #90B134 ΔE 0.033
- Turtle Green #75B84F ΔE 0.034
- Bright Olive #9CBB04 ΔE 0.038
- Pea #A4BF20 ΔE 0.039
- Mustard Green #A8B504 ΔE 0.042
- Icky Green #8FAE22 ΔE 0.044
- Soft Green #6FC276 ΔE 0.044
Use #90BC51 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.