#CFC03E
Closest named color: Mustard Yellow (#D2BD0A). oklch(79.7% 0.146 102.6), rgb(207, 192, 62).
Aa
Black text reads best on this color (11.26:1).
About this color
#CFC03E is a light, vivid yellow. In OKLCH its lightness is 80%, its chroma 0.146 and its hue 103°. Its hue sits on the warm side of the wheel. The nearest named color is Mustard Yellow (#D2BD0A), ΔE 0.019 away. Black text reads best on it, at 11.26:1.
| Hue family | Yellows |
| Lightness | light (80%) |
| Chroma | vivid (0.146) |
| Temperature | warm |
| Nearest name | Mustard Yellow (#D2BD0A) |
| Black text | 11.26:1 |
| White text | 1.86:1 |
Values
| HEX | #CFC03E |
| RGB | rgb(207, 192, 62) |
| HSL | hsl(54, 60%, 53%) |
| OKLCH | oklch(79.7% 0.146 102.6) |
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 #CFC03E | 1.86:1 | Fails | Lc -39.3 | Non-text elements, placeholder text |
| Black text on #CFC03E | 11.26:1 | AAA | Lc 68.8 | Content text, not long reading |
| #CFC03E text on white | 1.86:1 | Fails | Lc 35.1 | Non-text elements, placeholder text |
| #CFC03E text on black | 11.26:1 | AAA | Lc -67.4 | 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
#F8F6E8
oklch(97.1% 0.019 100.1)
-
Step 100
100
#EFECCC
oklch(93.7% 0.042 102.8)
-
Step 200
200
#E3DC9D
oklch(88.5% 0.082 102.5)
-
Step 300
300 (this color)
#CFC03E
oklch(79.7% 0.146 102.6)
-
Step 400
400
#B3A300
oklch(70.7% 0.148 102.4)
-
Step 500
500
#998C00
oklch(63.2% 0.133 102.9)
-
Step 600
600
#817500
oklch(55.6% 0.117 102.3)
-
Step 700
700
#6C6200
oklch(49% 0.103 102.5)
-
Step 800
800
#595000
oklch(42.7% 0.089 102)
-
Step 900
900
#4A4300
oklch(37.8% 0.079 102.7)
-
Step 950
950
#2C2700
oklch(27% 0.057 102.1)
#CFC03E 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) | #D1BA2A | 0.016 |
| Deuteranopia (no green cones) | #D6C146 | 0.013 |
| Tritanopia (no blue cones) | #DFB3A6 | 0.133 |
| Achromatopsia (no color) | #BEBEBE | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CFC03E
#CFC03E
oklch(79.7% 0.146 102.6)
- #B3B4FF
#B3B4FF
oklch(79.7% 0.106 283.1)
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 #CFC03E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Yellow #D2BD0A ΔE 0.019
- Dark Yellow #D5B60A ΔE 0.027
- Mustard #CEB301 ΔE 0.035
- Olive Yellow #C2B709 ΔE 0.037
- Burnt Yellow #D5AB09 ΔE 0.051
- Greenish Tan #BCCB7A ΔE 0.053
- Macaroni And Cheese #EFB435 ΔE 0.054
- Greenish Beige #C9D179 ΔE 0.056
Use #CFC03E 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.