#C4C423
Closest named color: Mustard Yellow (#D2BD0A). oklch(79.5% 0.165 109.6), rgb(196, 196, 35).
Aa
Black text reads best on this color (11.26:1).
About this color
#C4C423 is a light, vivid yellow. In OKLCH its lightness is 79%, its chroma 0.165 and its hue 110°. Its hue sits on the warm side of the wheel. The nearest named color is Mustard Yellow (#D2BD0A), ΔE 0.024 away. Black text reads best on it, at 11.26:1.
| Hue family | Yellows |
| Lightness | light (79%) |
| Chroma | vivid (0.165) |
| Temperature | warm |
| Nearest name | Mustard Yellow (#D2BD0A) |
| Black text | 11.26:1 |
| White text | 1.86:1 |
Values
| HEX | #C4C423 |
| RGB | rgb(196, 196, 35) |
| HSL | hsl(60, 70%, 45%) |
| OKLCH | oklch(79.5% 0.165 109.6) |
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 #C4C423 | 1.86:1 | Fails | Lc -39.2 | Non-text elements, placeholder text |
| Black text on #C4C423 | 11.26:1 | AAA | Lc 68.8 | Content text, not long reading |
| #C4C423 text on white | 1.86:1 | Fails | Lc 35.0 | Non-text elements, placeholder text |
| #C4C423 text on black | 11.26:1 | AAA | Lc -67.5 | 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
#F6F7E6
oklch(97.1% 0.022 109.5)
-
Step 100
100
#EBEDC9
oklch(93.5% 0.047 109.9)
-
Step 200
200
#DDDF97
oklch(88.5% 0.092 109.5)
-
Step 300
300 (this color)
#C4C423
oklch(79.5% 0.165 109.6)
-
Step 400
400
#A8A800
oklch(70.8% 0.154 109.8)
-
Step 500
500
#908F00
oklch(63% 0.137 109.3)
-
Step 600
600
#797800
oklch(55.5% 0.121 109.2)
-
Step 700
700
#656500
oklch(49.1% 0.107 109.8)
-
Step 800
800
#535300
oklch(42.8% 0.093 109.8)
-
Step 900
900
#454500
oklch(37.8% 0.082 109.8)
-
Step 950
950
#292800
oklch(26.9% 0.058 108.3)
#C4C423 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) | #D4BB00 | 0.029 |
| Deuteranopia (no green cones) | #D6C033 | 0.031 |
| Tritanopia (no blue cones) | #D2B7A8 | 0.149 |
| Achromatopsia (no color) | #BEBEBE | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C4C423
#C4C423
oklch(79.5% 0.165 109.6)
- #BAB0FF
#BAB0FF
oklch(79.5% 0.111 289.4)
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 #C4C423, closest first.
No curated palette has a color within ΔE 0.04 of #C4C423.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Yellow #D2BD0A ΔE 0.024
- Olive Yellow #C2B709 ΔE 0.033
- Dark Yellow #D5B60A ΔE 0.040
- Mustard #CEB301 ΔE 0.043
- Pea #A4BF20 ΔE 0.047
- Yellow Green #9ACD32 ΔE 0.056
- Light Olive Green #A4BE5C ΔE 0.059
- Mustard Green #A8B504 ΔE 0.059
Use #C4C423 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.