#B1D047
Closest named color: Yellow Green (#9ACD32). oklch(80.9% 0.164 121.2), rgb(177, 208, 71).
Aa
Black text reads best on this color (11.98:1).
About this color
#B1D047 is a light, vivid yellow. In OKLCH its lightness is 81%, its chroma 0.164 and its hue 121°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Yellow Green (#9ACD32), ΔE 0.035 away. Black text reads best on it, at 11.98:1.
| Hue family | Yellows |
| Lightness | light (81%) |
| Chroma | vivid (0.164) |
| Temperature | in between |
| Nearest name | Yellow Green (#9ACD32) |
| Black text | 11.98:1 |
| White text | 1.75:1 |
Values
| HEX | #B1D047 |
| RGB | rgb(177, 208, 71) |
| HSL | hsl(74, 59%, 55%) |
| OKLCH | oklch(80.9% 0.164 121.2) |
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 #B1D047 | 1.75:1 | Fails | Lc -35.8 | Non-text elements, placeholder text |
| Black text on #B1D047 | 11.98:1 | AAA | Lc 72.0 | Content text, not long reading |
| #B1D047 text on white | 1.75:1 | Fails | Lc 31.9 | Non-text elements, placeholder text |
| #B1D047 text on black | 11.98:1 | AAA | Lc -70.8 | 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
#F3F8E8
oklch(97.1% 0.022 121)
-
Step 100
100
#E5EFCC
oklch(93.5% 0.047 120.3)
-
Step 200
200
#D0E39F
oklch(88.5% 0.091 121)
-
Step 300
300 (this color)
#B1D047
oklch(80.9% 0.164 121.2)
-
Step 400
400
#91AF00
oklch(70.6% 0.17 121.2)
-
Step 500
500
#7C9600
oklch(63% 0.151 121.2)
-
Step 600
600
#687E00
oklch(55.5% 0.133 121.1)
-
Step 700
700
#576A00
oklch(49.1% 0.118 121.1)
-
Step 800
800
#475700
oklch(42.8% 0.103 121.1)
-
Step 900
900
#3B4800
oklch(37.7% 0.09 120.7)
-
Step 950
950
#222B00
oklch(27.1% 0.065 121.1)
#B1D047 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) | #DCC434 | 0.062 |
| Deuteranopia (no green cones) | #D8C451 | 0.063 |
| Tritanopia (no blue cones) | #BAC6B4 | 0.137 |
| Achromatopsia (no color) | #C4C4C4 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1D047
#B1D047
oklch(80.9% 0.164 121.2)
- #CDAFFF
#CDAFFF
oklch(80.9% 0.115 301.1)
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 #B1D047, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Yellow Green #9ACD32 ΔE 0.035
- Slime Green #99CC04 ΔE 0.046
- Pale Olive Green #B1D27B ΔE 0.048
- Pea #A4BF20 ΔE 0.051
- Light Moss Green #A6C875 ΔE 0.054
- Greenish Tan #BCCB7A ΔE 0.059
- Mustard Yellow #D2BD0A ΔE 0.059
- Light Olive Green #A4BE5C ΔE 0.060
Use #B1D047 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.