#CDC618
Closest named color: Mustard Yellow (#D2BD0A). oklch(80.7% 0.169 107), rgb(205, 198, 24).
Aa
Black text reads best on this color (11.68:1).
About this color
#CDC618 is a light, vivid yellow. In OKLCH its lightness is 81%, its chroma 0.169 and its hue 107°. Its hue sits on the warm side of the wheel. The nearest named color is Mustard Yellow (#D2BD0A), ΔE 0.023 away. Black text reads best on it, at 11.68:1.
| Hue family | Yellows |
| Lightness | light (81%) |
| Chroma | vivid (0.169) |
| Temperature | warm |
| Nearest name | Mustard Yellow (#D2BD0A) |
| Black text | 11.68:1 |
| White text | 1.79:1 |
Values
| HEX | #CDC618 |
| RGB | rgb(205, 198, 24) |
| HSL | hsl(58, 79%, 45%) |
| OKLCH | oklch(80.7% 0.169 107) |
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 #CDC618 | 1.79:1 | Fails | Lc -37.2 | Non-text elements, placeholder text |
| Black text on #CDC618 | 11.68:1 | AAA | Lc 70.7 | Content text, not long reading |
| #CDC618 text on white | 1.79:1 | Fails | Lc 33.1 | Non-text elements, placeholder text |
| #CDC618 text on black | 11.68:1 | AAA | Lc -69.5 | 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
#F7F7E6
oklch(97.2% 0.022 106.8)
-
Step 100
100
#EDEDC8
oklch(93.7% 0.048 107.3)
-
Step 200
200
#E0DE95
oklch(88.5% 0.093 106.8)
-
Step 300
300 (this color)
#CDC618
oklch(80.7% 0.169 107)
-
Step 400
400
#ACA600
oklch(70.7% 0.152 107.1)
-
Step 500
500
#938E00
oklch(63.1% 0.135 107.2)
-
Step 600
600
#7C7700
oklch(55.6% 0.119 106.8)
-
Step 700
700
#686400
oklch(49.1% 0.105 107)
-
Step 800
800
#555200
oklch(42.8% 0.092 107.3)
-
Step 900
900
#474400
oklch(37.7% 0.081 106.8)
-
Step 950
950
#2A2800
oklch(27% 0.058 106.8)
#CDC618 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) | #D8BE00 | 0.024 |
| Deuteranopia (no green cones) | #DBC42D | 0.024 |
| Tritanopia (no blue cones) | #DDB8A9 | 0.154 |
| Achromatopsia (no color) | #C1C1C1 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CDC618
#CDC618
oklch(80.7% 0.169 107)
- #BBB6FF
#BBB6FF
oklch(80.7% 0.102 287)
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 #CDC618, closest first.
No curated palette has a color within ΔE 0.04 of #CDC618.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Yellow #D2BD0A ΔE 0.023
- Dark Yellow #D5B60A ΔE 0.041
- Olive Yellow #C2B709 ΔE 0.043
- Mustard #CEB301 ΔE 0.048
- Golden #F5BF03 ΔE 0.061
- Pea #A4BF20 ΔE 0.061
- Greenish Beige #C9D179 ΔE 0.065
- Yellow Green #9ACD32 ΔE 0.066
Use #CDC618 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.