#90C558
Closest named color: Light Olive Green (#A4BE5C). oklch(76.3% 0.151 130.8), rgb(144, 197, 88).
Aa
Black text reads best on this color (10.31:1).
About this color
#90C558 is a medium-light, vivid green. In OKLCH its lightness is 76%, its chroma 0.151 and its hue 131°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Olive Green (#A4BE5C), ΔE 0.031 away. Black text reads best on it, at 10.31:1.
| Hue family | Greens |
| Lightness | medium-light (76%) |
| Chroma | vivid (0.151) |
| Temperature | in between |
| Nearest name | Light Olive Green (#A4BE5C) |
| Black text | 10.31:1 |
| White text | 2.03:1 |
Values
| HEX | #90C558 |
| RGB | rgb(144, 197, 88) |
| HSL | hsl(89, 48%, 56%) |
| OKLCH | oklch(76.3% 0.151 130.8) |
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 #90C558 | 2.03:1 | Fails | Lc -44.0 | Non-text elements, placeholder text |
| Black text on #90C558 | 10.31:1 | AAA | Lc 64.4 | Content text, not long reading |
| #90C558 text on white | 2.03:1 | Fails | Lc 39.5 | Non-text elements, placeholder text |
| #90C558 text on black | 10.31:1 | AAA | Lc -62.8 | 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
#F1F8EB
oklch(97% 0.019 130.2)
-
Step 100
100
#E0F0D2
oklch(93.5% 0.043 130.3)
-
Step 200
200
#C6E5AB
oklch(88.5% 0.084 130.8)
-
Step 300
300 (this color)
#90C558
oklch(76.3% 0.151 130.8)
-
Step 400
400
#75B700
oklch(70.7% 0.193 130.7)
-
Step 500
500
#639D00
oklch(63.1% 0.172 130.9)
-
Step 600
600
#538400
oklch(55.7% 0.152 130.8)
-
Step 700
700
#456F00
oklch(49.2% 0.134 130.8)
-
Step 800
800
#385B00
oklch(42.8% 0.116 130.7)
-
Step 900
900
#2D4C00
oklch(37.8% 0.103 131.1)
-
Step 950
950
#192D00
oklch(27% 0.074 130.9)
#90C558 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) | #CDB84D | 0.083 |
| Deuteranopia (no green cones) | #C5B45F | 0.083 |
| Tritanopia (no blue cones) | #93BEAD | 0.115 |
| Achromatopsia (no color) | #B6B6B6 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90C558
#90C558
oklch(76.3% 0.151 130.8)
- #D095F8
#D095F8
oklch(76.3% 0.15 310.6)
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 #90C558, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Olive Green #A4BE5C ΔE 0.031
- Pea #A4BF20 ΔE 0.038
- Yellow Green #9ACD32 ΔE 0.041
- Bright Olive #9CBB04 ΔE 0.044
- Light Moss Green #A6C875 ΔE 0.044
- Soft Green #6FC276 ΔE 0.046
- Light Olive #ACBF69 ΔE 0.046
- Turtle Green #75B84F ΔE 0.050
Use #90C558 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.