#CEC645
Closest named color: Mustard Yellow (#D2BD0A). oklch(81% 0.147 105.8), rgb(206, 198, 69).
Aa
Black text reads best on this color (11.78:1).
About this color
#CEC645 is a light, vivid yellow. In OKLCH its lightness is 81%, its chroma 0.147 and its hue 106°. Its hue sits on the warm side of the wheel. The nearest named color is Mustard Yellow (#D2BD0A), ΔE 0.028 away. Black text reads best on it, at 11.78:1.
| Hue family | Yellows |
| Lightness | light (81%) |
| Chroma | vivid (0.147) |
| Temperature | warm |
| Nearest name | Mustard Yellow (#D2BD0A) |
| Black text | 11.78:1 |
| White text | 1.78:1 |
Values
| HEX | #CEC645 |
| RGB | rgb(206, 198, 69) |
| HSL | hsl(56, 58%, 54%) |
| OKLCH | oklch(81% 0.147 105.8) |
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 #CEC645 | 1.78:1 | Fails | Lc -36.8 | Non-text elements, placeholder text |
| Black text on #CEC645 | 11.78:1 | AAA | Lc 71.1 | Content text, not long reading |
| #CEC645 text on white | 1.78:1 | Fails | Lc 32.8 | Non-text elements, placeholder text |
| #CEC645 text on black | 11.78:1 | AAA | Lc -69.9 | 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
#F7F7E8
oklch(97.2% 0.02 106.8)
-
Step 100
100
#EDECCC
oklch(93.6% 0.042 105.7)
-
Step 200
200
#E0DD9E
oklch(88.5% 0.081 105.6)
-
Step 300
300 (this color)
#CEC645
oklch(81% 0.147 105.8)
-
Step 400
400
#AEA500
oklch(70.7% 0.151 105.7)
-
Step 500
500
#958D00
oklch(63% 0.134 105.6)
-
Step 600
600
#7D7700
oklch(55.7% 0.119 106.2)
-
Step 700
700
#696400
oklch(49.2% 0.105 106.3)
-
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
#2A2800
oklch(27% 0.058 106.8)
#CEC645 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) | #D7BF33 | 0.020 |
| Deuteranopia (no green cones) | #DAC54D | 0.020 |
| Tritanopia (no blue cones) | #DDB9AC | 0.134 |
| Achromatopsia (no color) | #C2C2C2 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CEC645
#CEC645
oklch(81% 0.147 105.8)
- #BBB8FF
#BBB8FF
oklch(81.1% 0.1 285.9)
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 #CEC645, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Yellow #D2BD0A ΔE 0.028
- Dark Yellow #D5B60A ΔE 0.041
- Greenish Beige #C9D179 ΔE 0.046
- Olive Yellow #C2B709 ΔE 0.048
- Greenish Tan #BCCB7A ΔE 0.048
- Mustard #CEB301 ΔE 0.049
- Pale Olive Green #B1D27B ΔE 0.055
- Pale Olive #B9CC81 ΔE 0.056
Use #CEC645 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.