#CFE599
Closest named color: Light Sage (#BCECAC). oklch(88.8% 0.101 121.6), rgb(207, 229, 153).
Aa
Black text reads best on this color (15.32:1).
About this color
#CFE599 is a light, moderately saturated yellow. In OKLCH its lightness is 89%, its chroma 0.101 and its hue 122°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Sage (#BCECAC), ΔE 0.029 away. Black text reads best on it, at 15.32:1.
| Hue family | Yellows |
| Lightness | light (89%) |
| Chroma | moderately saturated (0.101) |
| Temperature | in between |
| Nearest name | Light Sage (#BCECAC) |
| Black text | 15.32:1 |
| White text | 1.37:1 |
Values
| HEX | #CFE599 |
| RGB | rgb(207, 229, 153) |
| HSL | hsl(77, 59%, 75%) |
| OKLCH | oklch(88.8% 0.101 121.6) |
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 #CFE599 | 1.37:1 | Fails | Lc -20.7 | Dividers and decoration only |
| Black text on #CFE599 | 15.32:1 | AAA | Lc 85.6 | Fine for body text |
| #CFE599 text on white | 1.37:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #CFE599 text on black | 15.32:1 | AAA | Lc -85.5 | Fine 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
#F3F8EB
oklch(97.2% 0.018 124)
-
Step 100
100
#E5EED3
oklch(93.5% 0.037 122.1)
-
Step 200
200 (this color)
#CFE599
oklch(88.8% 0.101 121.6)
-
Step 300
300
#B3CE6A
oklch(81% 0.13 121.8)
-
Step 400
400
#90B000
oklch(70.8% 0.171 121.8)
-
Step 500
500
#7B9700
oklch(63.2% 0.153 121.9)
-
Step 600
600
#677E00
oklch(55.5% 0.134 121.5)
-
Step 700
700
#566A00
oklch(49% 0.118 121.7)
-
Step 800
800
#465700
oklch(42.7% 0.103 121.8)
-
Step 900
900
#3A4800
oklch(37.6% 0.091 121.4)
-
Step 950
950
#212B00
oklch(27% 0.066 122.2)
#CFE599 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) | #EEDC94 | 0.044 |
| Deuteranopia (no green cones) | #EBDC9D | 0.044 |
| Tritanopia (no blue cones) | #D5DED2 | 0.083 |
| Achromatopsia (no color) | #DCDCDC | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CFE599
#CFE599
oklch(88.8% 0.101 121.6)
- #E1D1FF
#E1D1FF
oklch(88.8% 0.065 301)
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 #CFE599, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sage #BCECAC ΔE 0.029
- Light Grey Green #B7E1A1 ΔE 0.034
- Tea Green #CAE7B9 ΔE 0.038
- Washed Out Green #BCF5A6 ΔE 0.043
- Khaki #F0E68C ΔE 0.045
- Light Khaki #E6F2A2 ΔE 0.047
- Light Gold #F3DE8A ΔE 0.048
- Pale Goldenrod #EEE8AA ΔE 0.049
Use #CFE599 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.