#CFB33B
Closest named color: Mustard (#CEB301). oklch(77% 0.138 95.6), rgb(207, 179, 59).
Aa
Black text reads best on this color (10.16:1).
About this color
#CFB33B is a medium-light, moderately saturated yellow. In OKLCH its lightness is 77%, its chroma 0.138 and its hue 96°. Its hue sits on the warm side of the wheel. The nearest named color is Mustard (#CEB301), ΔE 0.022 away. Black text reads best on it, at 10.16:1.
| Hue family | Yellows |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.138) |
| Temperature | warm |
| Nearest name | Mustard (#CEB301) |
| Black text | 10.16:1 |
| White text | 2.06:1 |
Values
| HEX | #CFB33B |
| RGB | rgb(207, 179, 59) |
| HSL | hsl(49, 61%, 52%) |
| OKLCH | oklch(77% 0.138 95.6) |
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 #CFB33B | 2.06:1 | Fails | Lc -44.7 | Non-text elements, placeholder text |
| Black text on #CFB33B | 10.16:1 | AAA | Lc 63.7 | Content text, not long reading |
| #CFB33B text on white | 2.06:1 | Fails | Lc 40.2 | Non-text elements, placeholder text |
| #CFB33B text on black | 10.16:1 | AAA | Lc -62.1 | 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
#F9F6E8
oklch(97.2% 0.019 96.9)
-
Step 100
100
#F2EACD
oklch(93.6% 0.039 94.3)
-
Step 200
200
#E8DA9F
oklch(88.6% 0.078 96.4)
-
Step 300
300 (this color)
#CFB33B
oklch(77% 0.138 95.6)
-
Step 400
400
#BC9F00
oklch(70.7% 0.145 95.9)
-
Step 500
500
#A18800
oklch(63.1% 0.13 96)
-
Step 600
600
#887200
oklch(55.6% 0.114 95.6)
-
Step 700
700
#725F00
oklch(49% 0.101 95.4)
-
Step 800
800
#5E4E00
oklch(42.8% 0.088 95.4)
-
Step 900
900
#4E4100
oklch(37.8% 0.078 96.2)
-
Step 950
950
#2F2600
oklch(27.1% 0.056 95.5)
#CFB33B 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) | #C5AF29 | 0.022 |
| Deuteranopia (no green cones) | #CDB842 | 0.012 |
| Tritanopia (no blue cones) | #DFA59B | 0.127 |
| Achromatopsia (no color) | #B4B4B4 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CFB33B
#CFB33B
oklch(77% 0.138 95.6)
- #9FAEFF
#9FAEFF
oklch(77.1% 0.117 275.3)
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 #CFB33B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard #CEB301 ΔE 0.022
- Burnt Yellow #D5AB09 ΔE 0.023
- Dark Yellow #D5B60A ΔE 0.024
- Olive Yellow #C2B709 ΔE 0.034
- Goldenrod #DAA520 ΔE 0.035
- Mustard Yellow #D2BD0A ΔE 0.037
- Muddy Yellow #BFAC05 ΔE 0.039
- Desert #CCAD60 ΔE 0.040
Use #CFB33B 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.