#CBB23F
Closest named color: Mustard (#CEB301). oklch(76.5% 0.134 96.7), rgb(203, 178, 63).
Aa
Black text reads best on this color (9.97:1).
About this color
#CBB23F is a medium-light, moderately saturated yellow. In OKLCH its lightness is 76%, its chroma 0.134 and its hue 97°. Its hue sits on the warm side of the wheel. The nearest named color is Mustard (#CEB301), ΔE 0.025 away. Black text reads best on it, at 9.97:1.
| Hue family | Yellows |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.134) |
| Temperature | warm |
| Nearest name | Mustard (#CEB301) |
| Black text | 9.97:1 |
| White text | 2.10:1 |
Values
| HEX | #CBB23F |
| RGB | rgb(203, 178, 63) |
| HSL | hsl(49, 57%, 52%) |
| OKLCH | oklch(76.5% 0.134 96.7) |
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 #CBB23F | 2.10:1 | Fails | Lc -45.7 | Large or bold text, headings |
| Black text on #CBB23F | 9.97:1 | AAA | Lc 62.9 | Content text, not long reading |
| #CBB23F text on white | 2.10:1 | Fails | Lc 41.1 | Non-text elements, placeholder text |
| #CBB23F text on black | 9.97:1 | AAA | Lc -61.2 | 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
#F1EACD
oklch(93.5% 0.039 95.9)
-
Step 200
200
#E7DAA1
oklch(88.5% 0.075 96.8)
-
Step 300
300 (this color)
#CBB23F
oklch(76.5% 0.134 96.7)
-
Step 400
400
#BB9F00
oklch(70.6% 0.145 96.4)
-
Step 500
500
#A08800
oklch(63% 0.13 96.6)
-
Step 600
600
#877200
oklch(55.5% 0.114 96.2)
-
Step 700
700
#716000
oklch(49.1% 0.101 97)
-
Step 800
800
#5D4E00
oklch(42.6% 0.088 96.3)
-
Step 900
900
#4D4100
oklch(37.6% 0.078 97.3)
-
Step 950
950
#2E2600
oklch(27% 0.056 97.1)
#CBB23F 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) | #C4AE2F | 0.018 |
| Deuteranopia (no green cones) | #CAB645 | 0.010 |
| Tritanopia (no blue cones) | #DBA59B | 0.123 |
| Achromatopsia (no color) | #B3B3B3 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CBB23F
#CBB23F
oklch(76.5% 0.134 96.7)
- #9FABFF
#9FABFF
oklch(76.5% 0.121 276.9)
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 #CBB23F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard #CEB301 ΔE 0.025
- Burnt Yellow #D5AB09 ΔE 0.025
- Dark Yellow #D5B60A ΔE 0.029
- Olive Yellow #C2B709 ΔE 0.035
- Muddy Yellow #BFAC05 ΔE 0.035
- Goldenrod #DAA520 ΔE 0.036
- Desert #CCAD60 ΔE 0.036
- Dark Khaki #BDB76B ΔE 0.039
Use #CBB23F 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.