#CBB328
Closest named color: Mustard (#CEB301). oklch(76.5% 0.148 98.6), rgb(203, 179, 40).
Aa
Black text reads best on this color (10.01:1).
About this color
#CBB328 is a medium-light, vivid yellow. In OKLCH its lightness is 77%, its chroma 0.148 and its hue 99°. Its hue sits on the warm side of the wheel. The nearest named color is Mustard (#CEB301), ΔE 0.011 away. Black text reads best on it, at 10.01:1.
| Hue family | Yellows |
| Lightness | medium-light (77%) |
| Chroma | vivid (0.148) |
| Temperature | warm |
| Nearest name | Mustard (#CEB301) |
| Black text | 10.01:1 |
| White text | 2.09:1 |
Values
| HEX | #CBB328 |
| RGB | rgb(203, 179, 40) |
| HSL | hsl(51, 67%, 48%) |
| OKLCH | oklch(76.5% 0.148 98.6) |
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 #CBB328 | 2.09:1 | Fails | Lc -45.5 | Large or bold text, headings |
| Black text on #CBB328 | 10.01:1 | AAA | Lc 63.1 | Content text, not long reading |
| #CBB328 text on white | 2.09:1 | Fails | Lc 40.9 | Non-text elements, placeholder text |
| #CBB328 text on black | 10.01:1 | AAA | Lc -61.4 | 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
#F9F6E7
oklch(97.1% 0.02 97.5)
-
Step 100
100
#F1EBCB
oklch(93.7% 0.042 98.4)
-
Step 200
200
#E7DB9B
oklch(88.6% 0.083 98.8)
-
Step 300
300 (this color)
#CBB328
oklch(76.5% 0.148 98.6)
-
Step 400
400
#B8A100
oklch(70.8% 0.147 99)
-
Step 500
500
#9E8900
oklch(63% 0.13 98.3)
-
Step 600
600
#857300
oklch(55.6% 0.115 98.3)
-
Step 700
700
#706100
oklch(49.2% 0.102 98.7)
-
Step 800
800
#5C4F00
oklch(42.8% 0.088 98.3)
-
Step 900
900
#4C4200
oklch(37.8% 0.078 99.5)
-
Step 950
950
#2D2600
oklch(26.8% 0.056 98.7)
#CBB328 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) | #C5AE00 | 0.019 |
| Deuteranopia (no green cones) | #CCB733 | 0.011 |
| Tritanopia (no blue cones) | #DBA59A | 0.137 |
| Achromatopsia (no color) | #B3B3B3 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CBB328
#CBB328
oklch(76.5% 0.148 98.6)
- #A2AAFF
#A2AAFF
oklch(76.5% 0.122 279)
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 #CBB328, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard #CEB301 ΔE 0.011
- Dark Yellow #D5B60A ΔE 0.019
- Olive Yellow #C2B709 ΔE 0.022
- Burnt Yellow #D5AB09 ΔE 0.023
- Muddy Yellow #BFAC05 ΔE 0.029
- Mustard Yellow #D2BD0A ΔE 0.032
- Goldenrod #DAA520 ΔE 0.040
- Desert #CCAD60 ΔE 0.051
Use #CBB328 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.