#B1F59B
Closest named color: Light Pastel Green (#B2FBA5). oklch(90.4% 0.137 138.3), rgb(177, 245, 155).
Aa
Black text reads best on this color (16.40:1).
About this color
#B1F59B is a very light, moderately saturated green. In OKLCH its lightness is 90%, its chroma 0.137 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Pastel Green (#B2FBA5), ΔE 0.017 away. Black text reads best on it, at 16.40:1.
| Hue family | Greens |
| Lightness | very light (90%) |
| Chroma | moderately saturated (0.137) |
| Temperature | in between |
| Nearest name | Light Pastel Green (#B2FBA5) |
| Black text | 16.40:1 |
| White text | 1.28:1 |
Values
| HEX | #B1F59B |
| RGB | rgb(177, 245, 155) |
| HSL | hsl(105, 82%, 78%) |
| OKLCH | oklch(90.4% 0.137 138.3) |
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 #B1F59B | 1.28:1 | Fails | Lc -15.9 | Dividers and decoration only |
| Black text on #B1F59B | 16.40:1 | AAA | Lc 89.8 | Fine for body text |
| #B1F59B text on white | 1.28:1 | Fails | Lc 13.8 | Not readable |
| #B1F59B text on black | 16.40:1 | AAA | Lc -90.1 | Preferred 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
#EEFAEA
oklch(97.2% 0.025 137.8)
-
Step 100
100
#DAF3D2
oklch(93.7% 0.051 138.1)
-
Step 200
200 (this color)
#B1F59B
oklch(90.4% 0.137 138.3)
-
Step 300
300
#83DB65
oklch(81% 0.176 138.4)
-
Step 400
400
#4CBE00
oklch(70.7% 0.22 138.3)
-
Step 500
500
#40A300
oklch(63.1% 0.196 138.3)
-
Step 600
600
#348900
oklch(55.6% 0.173 138.4)
-
Step 700
700
#2B7300
oklch(49% 0.152 138.2)
-
Step 800
800
#225F00
oklch(42.8% 0.133 138.3)
-
Step 900
900
#1B4F00
oklch(37.7% 0.117 138.3)
-
Step 950
950
#0D2F00
oklch(26.9% 0.084 138.2)
#B1F59B 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) | #FBE795 | 0.095 |
| Deuteranopia (no green cones) | #F0E1A0 | 0.093 |
| Tritanopia (no blue cones) | #AEEFDE | 0.093 |
| Achromatopsia (no color) | #E3E3E3 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1F59B
#B1F59B
oklch(90.4% 0.137 138.3)
- #F4D1FF
#F4D1FF
oklch(90.4% 0.072 318)
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 #B1F59B, closest first.
No curated palette has a color within ΔE 0.04 of #B1F59B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Pastel Green #B2FBA5 ΔE 0.017
- Washed Out Green #BCF5A6 ΔE 0.020
- Pale Light Green #B1FC99 ΔE 0.020
- Pastel Green #B0FF9D ΔE 0.026
- Light Mint Green #A6FBB2 ΔE 0.027
- Pistachio #C0FA8B ΔE 0.029
- Mint #9FFEB0 ΔE 0.029
- Pale Green #98FB98 ΔE 0.030
Use #B1F59B 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.