#CFF18B
Closest named color: Pistachio (#C0FA8B). oklch(91.1% 0.134 124.1), rgb(207, 241, 139).
Aa
Black text reads best on this color (16.60:1).
About this color
#CFF18B is a very light, moderately saturated yellow. In OKLCH its lightness is 91%, its chroma 0.134 and its hue 124°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Pistachio (#C0FA8B), ΔE 0.028 away. Black text reads best on it, at 16.60:1.
| Hue family | Yellows |
| Lightness | very light (91%) |
| Chroma | moderately saturated (0.134) |
| Temperature | in between |
| Nearest name | Pistachio (#C0FA8B) |
| Black text | 16.60:1 |
| White text | 1.26:1 |
Values
| HEX | #CFF18B |
| RGB | rgb(207, 241, 139) |
| HSL | hsl(80, 78%, 75%) |
| OKLCH | oklch(91.1% 0.134 124.1) |
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 #CFF18B | 1.26:1 | Fails | Lc -15.1 | Dividers and decoration only |
| Black text on #CFF18B | 16.60:1 | AAA | Lc 90.5 | Preferred for body text |
| #CFF18B text on white | 1.26:1 | Fails | Lc 13.1 | Not readable |
| #CFF18B text on black | 16.60:1 | AAA | Lc -90.9 | 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 100.
-
Step 50
50
#F2F8E8
oklch(97% 0.022 123.6)
-
Step 100
100 (this color)
#CFF18B
oklch(91.1% 0.134 124.1)
-
Step 200
200
#CCE49E
oklch(88.4% 0.095 123.7)
-
Step 300
300
#AAD245
oklch(80.8% 0.171 123.9)
-
Step 400
400
#8AB200
oklch(70.8% 0.176 124.2)
-
Step 500
500
#769800
oklch(63.1% 0.157 124)
-
Step 600
600
#638000
oklch(55.7% 0.138 124)
-
Step 700
700
#526B00
oklch(49% 0.122 124.1)
-
Step 800
800
#435800
oklch(42.7% 0.106 124.1)
-
Step 900
900
#374900
oklch(37.6% 0.094 124.1)
-
Step 950
950
#202B00
oklch(26.9% 0.066 123.3)
#CFF18B 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) | #FBE683 | 0.060 |
| Deuteranopia (no green cones) | #F7E490 | 0.062 |
| Tritanopia (no blue cones) | #D6E8D8 | 0.108 |
| Achromatopsia (no color) | #E5E5E5 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CFF18B
#CFF18B
oklch(91.1% 0.134 124.1)
- #E9DAFF
#E9DAFF
oklch(91.2% 0.052 303.8)
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 #CFF18B, closest first.
No curated palette has a color within ΔE 0.04 of #CFF18B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pistachio #C0FA8B ΔE 0.028
- Celery #C1FD95 ΔE 0.032
- Washed Out Green #BCF5A6 ΔE 0.032
- Light Yellow Green #CCFD7F ΔE 0.038
- Pale Light Green #B1FC99 ΔE 0.039
- Light Pastel Green #B2FBA5 ΔE 0.040
- Light Pea Green #C4FE82 ΔE 0.040
- Light Khaki #E6F2A2 ΔE 0.042
Use #CFF18B 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.