#EFE163
Closest named color: Dull Yellow (#EEDC5B). oklch(89.7% 0.146 103), rgb(239, 225, 99).
Aa
Black text reads best on this color (15.62:1).
About this color
#EFE163 is a light, vivid yellow. In OKLCH its lightness is 90%, its chroma 0.146 and its hue 103°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Yellow (#EEDC5B), ΔE 0.013 away. Black text reads best on it, at 15.62:1.
| Hue family | Yellows |
| Lightness | light (90%) |
| Chroma | vivid (0.146) |
| Temperature | warm |
| Nearest name | Dull Yellow (#EEDC5B) |
| Black text | 15.62:1 |
| White text | 1.34:1 |
Values
| HEX | #EFE163 |
| RGB | rgb(239, 225, 99) |
| HSL | hsl(54, 81%, 66%) |
| OKLCH | oklch(89.7% 0.146 103) |
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 #EFE163 | 1.34:1 | Fails | Lc -19.3 | Dividers and decoration only |
| Black text on #EFE163 | 15.62:1 | AAA | Lc 86.8 | Fine for body text |
| #EFE163 text on white | 1.34:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #EFE163 text on black | 15.62:1 | AAA | Lc -86.8 | Fine for body text |
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 200.
-
Step 50
50
#F8F7E4
oklch(97.2% 0.025 104.4)
-
Step 100
100
#F0ECC3
oklch(93.6% 0.054 102.8)
-
Step 200
200 (this color)
#EFE163
oklch(89.7% 0.146 103)
-
Step 300
300
#D5C400
oklch(80.9% 0.17 103.2)
-
Step 400
400
#B2A300
oklch(70.6% 0.148 102.9)
-
Step 500
500
#998C00
oklch(63.2% 0.133 102.9)
-
Step 600
600
#807500
oklch(55.5% 0.117 103)
-
Step 700
700
#6C6200
oklch(49% 0.103 102.5)
-
Step 800
800
#585000
oklch(42.6% 0.089 102.9)
-
Step 900
900
#4A4300
oklch(37.8% 0.079 102.7)
-
Step 950
950
#2C2700
oklch(27% 0.057 102.1)
#EFE163 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) | #F3DA55 | 0.017 |
| Deuteranopia (no green cones) | #F8E16A | 0.015 |
| Tritanopia (no blue cones) | #FFD3C6 | 0.134 |
| Achromatopsia (no color) | #DEDEDE | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EFE163
#EFE163
oklch(89.7% 0.146 103)
- #D8DAFF
#D8DAFF
oklch(89.9% 0.051 282.9)
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 #EFE163, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Yellow #EEDC5B ΔE 0.013
- Sand Yellow #FCE166 ΔE 0.019
- Pale Gold #FDDE6C ΔE 0.025
- Yellow Tan #FFE36E ΔE 0.027
- Light Mustard #F7D560 ΔE 0.031
- Sandy #F1DA7A ΔE 0.033
- Sun Yellow #FFDF22 ΔE 0.038
- Khaki #F0E68C ΔE 0.038
Use #EFE163 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.