#CDC54D
Closest named color: Mustard Yellow (#D2BD0A). oklch(80.7% 0.14 105.5), rgb(205, 197, 77).
Aa
Black text reads best on this color (11.68:1).
About this color
#CDC54D is a light, vivid yellow. In OKLCH its lightness is 81%, its chroma 0.140 and its hue 105°. Its hue sits on the warm side of the wheel. The nearest named color is Mustard Yellow (#D2BD0A), ΔE 0.031 away. Black text reads best on it, at 11.68:1.
| Hue family | Yellows |
| Lightness | light (81%) |
| Chroma | vivid (0.140) |
| Temperature | warm |
| Nearest name | Mustard Yellow (#D2BD0A) |
| Black text | 11.68:1 |
| White text | 1.79:1 |
Values
| HEX | #CDC54D |
| RGB | rgb(205, 197, 77) |
| HSL | hsl(56, 56%, 55%) |
| OKLCH | oklch(80.7% 0.14 105.5) |
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 #CDC54D | 1.79:1 | Fails | Lc -37.2 | Non-text elements, placeholder text |
| Black text on #CDC54D | 11.68:1 | AAA | Lc 70.7 | Content text, not long reading |
| #CDC54D text on white | 1.79:1 | Fails | Lc 33.2 | Non-text elements, placeholder text |
| #CDC54D text on black | 11.68:1 | AAA | Lc -69.4 | 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
#F7F6E8
oklch(97% 0.018 103.4)
-
Step 100
100
#EDECCD
oklch(93.6% 0.041 105.6)
-
Step 200
200
#E0DDA1
oklch(88.6% 0.078 105.5)
-
Step 300
300 (this color)
#CDC54D
oklch(80.7% 0.14 105.5)
-
Step 400
400
#AEA500
oklch(70.7% 0.151 105.7)
-
Step 500
500
#958D00
oklch(63% 0.134 105.6)
-
Step 600
600
#7E7600
oklch(55.5% 0.118 104.9)
-
Step 700
700
#696300
oklch(49% 0.104 105.5)
-
Step 800
800
#565100
oklch(42.6% 0.091 105.5)
-
Step 900
900
#484400
oklch(37.8% 0.081 105.9)
-
Step 950
950
#2B2800
oklch(27.1% 0.058 105.3)
#CDC54D 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) | #D5BE3E | 0.019 |
| Deuteranopia (no green cones) | #D8C454 | 0.018 |
| Tritanopia (no blue cones) | #DBB9AC | 0.127 |
| Achromatopsia (no color) | #C1C1C1 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CDC54D
#CDC54D
oklch(80.7% 0.14 105.5)
- #B9B7FF
#B9B7FF
oklch(80.7% 0.101 285.2)
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 #CDC54D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Yellow #D2BD0A ΔE 0.031
- Dark Yellow #D5B60A ΔE 0.041
- Greenish Tan #BCCB7A ΔE 0.042
- Greenish Beige #C9D179 ΔE 0.043
- Olive Yellow #C2B709 ΔE 0.048
- Mustard #CEB301 ΔE 0.048
- Pale Olive #B9CC81 ΔE 0.050
- Pale Olive Green #B1D27B ΔE 0.052
Use #CDC54D 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.