#CFD037
Closest named color: Mustard Yellow (#D2BD0A). oklch(83.1% 0.165 109.9), rgb(207, 208, 55).
Aa
Black text reads best on this color (12.73:1).
About this color
#CFD037 is a light, vivid yellow. In OKLCH its lightness is 83%, its chroma 0.165 and its hue 110°. Its hue sits on the warm side of the wheel. The nearest named color is Mustard Yellow (#D2BD0A), ΔE 0.047 away. Black text reads best on it, at 12.73:1.
| Hue family | Yellows |
| Lightness | light (83%) |
| Chroma | vivid (0.165) |
| Temperature | warm |
| Nearest name | Mustard Yellow (#D2BD0A) |
| Black text | 12.73:1 |
| White text | 1.64:1 |
Values
| HEX | #CFD037 |
| RGB | rgb(207, 208, 55) |
| HSL | hsl(60, 62%, 52%) |
| OKLCH | oklch(83.1% 0.165 109.9) |
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 #CFD037 | 1.64:1 | Fails | Lc -32.3 | Non-text elements, placeholder text |
| Black text on #CFD037 | 12.73:1 | AAA | Lc 75.2 | Fine for body text |
| #CFD037 text on white | 1.64:1 | Fails | Lc 28.6 | Dividers and decoration only |
| #CFD037 text on black | 12.73:1 | AAA | Lc -74.3 | 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
#F6F7E6
oklch(97.1% 0.022 109.5)
-
Step 100
100
#EBEDC9
oklch(93.5% 0.047 109.9)
-
Step 200
200
#DCDF98
oklch(88.5% 0.091 110.2)
-
Step 300
300 (this color)
#CFD037
oklch(83.1% 0.165 109.9)
-
Step 400
400
#A7A800
oklch(70.7% 0.155 110.2)
-
Step 500
500
#8F9000
oklch(63.2% 0.138 110.3)
-
Step 600
600
#787900
oklch(55.7% 0.122 110.4)
-
Step 700
700
#656500
oklch(49.1% 0.107 109.8)
-
Step 800
800
#535300
oklch(42.8% 0.093 109.8)
-
Step 900
900
#454500
oklch(37.8% 0.082 109.8)
-
Step 950
950
#282900
oklch(27.1% 0.06 111.2)
#CFD037 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) | #E1C715 | 0.031 |
| Deuteranopia (no green cones) | #E2CC43 | 0.032 |
| Tritanopia (no blue cones) | #DEC3B3 | 0.148 |
| Achromatopsia (no color) | #C9C9C9 | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CFD037
#CFD037
oklch(83.1% 0.165 109.9)
- #C6BEFF
#C6BEFF
oklch(83.1% 0.091 289.9)
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 #CFD037, closest first.
No curated palette has a color within ΔE 0.04 of #CFD037.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Yellow #D2BD0A ΔE 0.047
- Greenish Beige #C9D179 ΔE 0.054
- Maize #F4D054 ΔE 0.061
- Pale Olive Green #B1D27B ΔE 0.061
- Dull Yellow #EEDC5B ΔE 0.061
- Dark Yellow #D5B60A ΔE 0.064
- Golden #F5BF03 ΔE 0.064
- Greenish Tan #BCCB7A ΔE 0.064
Use #CFD037 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.