#C1D043
Closest named color: Mustard Yellow (#D2BD0A). oklch(82.1% 0.161 115.3), rgb(193, 208, 67).
Aa
Black text reads best on this color (12.37:1).
About this color
#C1D043 is a light, vivid yellow. In OKLCH its lightness is 82%, its chroma 0.161 and its hue 115°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mustard Yellow (#D2BD0A), ΔE 0.049 away. Black text reads best on it, at 12.37:1.
| Hue family | Yellows |
| Lightness | light (82%) |
| Chroma | vivid (0.161) |
| Temperature | in between |
| Nearest name | Mustard Yellow (#D2BD0A) |
| Black text | 12.37:1 |
| White text | 1.69:1 |
Values
| HEX | #C1D043 |
| RGB | rgb(193, 208, 67) |
| HSL | hsl(66, 60%, 54%) |
| OKLCH | oklch(82.1% 0.161 115.3) |
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 #C1D043 | 1.69:1 | Fails | Lc -34.0 | Non-text elements, placeholder text |
| Black text on #C1D043 | 12.37:1 | AAA | Lc 73.6 | Content text, not long reading |
| #C1D043 text on white | 1.69:1 | Fails | Lc 30.2 | Non-text elements, placeholder text |
| #C1D043 text on black | 12.37:1 | AAA | Lc -72.6 | 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
#F5F7E7
oklch(97% 0.021 112.6)
-
Step 100
100
#E8EECB
oklch(93.5% 0.046 115.2)
-
Step 200
200
#D6E19C
oklch(88.5% 0.09 115.6)
-
Step 300
300 (this color)
#C1D043
oklch(82.1% 0.161 115.3)
-
Step 400
400
#9EAB00
oklch(70.7% 0.16 115.1)
-
Step 500
500
#879300
oklch(63.2% 0.144 115.4)
-
Step 600
600
#717B00
oklch(55.5% 0.126 115.3)
-
Step 700
700
#5F6700
oklch(49% 0.111 115)
-
Step 800
800
#4D5500
oklch(42.8% 0.098 115.9)
-
Step 900
900
#404600
oklch(37.6% 0.085 115.2)
-
Step 950
950
#262A00
oklch(27.2% 0.062 115.2)
#C1D043 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) | #DEC62D | 0.044 |
| Deuteranopia (no green cones) | #DDC84D | 0.046 |
| Tritanopia (no blue cones) | #CDC4B4 | 0.142 |
| Achromatopsia (no color) | #C7C7C7 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C1D043
#C1D043
oklch(82.1% 0.161 115.3)
- #C9B7FF
#C9B7FF
oklch(82% 0.101 295.6)
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 #C1D043, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Yellow #D2BD0A ΔE 0.049
- Pale Olive Green #B1D27B ΔE 0.050
- Greenish Beige #C9D179 ΔE 0.052
- Yellow Green #9ACD32 ΔE 0.054
- Greenish Tan #BCCB7A ΔE 0.056
- Pale Olive #B9CC81 ΔE 0.062
- Light Moss Green #A6C875 ΔE 0.062
- Slime Green #99CC04 ΔE 0.063
Use #C1D043 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.