#CFB900
Closest named color: Mustard Yellow (#D2BD0A). oklch(78% 0.163 100.7), rgb(207, 185, 0).
Aa
Black text reads best on this color (10.59:1).
About this color
#CFB900 is a light, vivid yellow. In OKLCH its lightness is 78%, its chroma 0.163 and its hue 101°. Its hue sits on the warm side of the wheel. The nearest named color is Mustard Yellow (#D2BD0A), ΔE 0.011 away. Black text reads best on it, at 10.59:1.
| Hue family | Yellows |
| Lightness | light (78%) |
| Chroma | vivid (0.163) |
| Temperature | warm |
| Nearest name | Mustard Yellow (#D2BD0A) |
| Black text | 10.59:1 |
| White text | 1.98:1 |
Values
| HEX | #CFB900 |
| RGB | rgb(207, 185, 0) |
| HSL | hsl(54, 100%, 41%) |
| OKLCH | oklch(78% 0.163 100.7) |
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 #CFB900 | 1.98:1 | Fails | Lc -42.5 | Non-text elements, placeholder text |
| Black text on #CFB900 | 10.59:1 | AAA | Lc 65.8 | Content text, not long reading |
| #CFB900 text on white | 1.98:1 | Fails | Lc 38.1 | Non-text elements, placeholder text |
| #CFB900 text on black | 10.59:1 | AAA | Lc -64.3 | 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
#F8F6E6
oklch(97% 0.021 101)
-
Step 100
100
#F0EBC8
oklch(93.5% 0.046 100.5)
-
Step 200
200
#E6DB95
oklch(88.4% 0.09 100.4)
-
Step 300
300 (this color)
#CFB900
oklch(78% 0.163 100.7)
-
Step 400
400
#B5A200
oklch(70.7% 0.147 100.9)
-
Step 500
500
#9B8B00
oklch(63.1% 0.132 101.2)
-
Step 600
600
#837400
oklch(55.6% 0.116 100.3)
-
Step 700
700
#6E6200
oklch(49.2% 0.103 101)
-
Step 800
800
#5A5000
oklch(42.8% 0.089 101.1)
-
Step 900
900
#4B4200
oklch(37.7% 0.078 100.6)
-
Step 950
950
#2D2700
oklch(27.1% 0.056 100.5)
#CFB900 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) | #CCB300 | 0.017 |
| Deuteranopia (no green cones) | #D2BC1F | 0.011 |
| Tritanopia (no blue cones) | #E0AA9D | 0.150 |
| Achromatopsia (no color) | #B8B8B8 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CFB900
#CFB900
oklch(78% 0.163 100.7)
- #AAAFFF
#AAAFFF
oklch(78% 0.114 280.7)
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 #CFB900, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Yellow #D2BD0A ΔE 0.011
- Dark Yellow #D5B60A ΔE 0.012
- Mustard #CEB301 ΔE 0.016
- Olive Yellow #C2B709 ΔE 0.020
- Burnt Yellow #D5AB09 ΔE 0.037
- Muddy Yellow #BFAC05 ΔE 0.043
- Goldenrod #DAA520 ΔE 0.056
- Macaroni And Cheese #EFB435 ΔE 0.058
Use #CFB900 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.