#EFE66D
Closest named color: Sand Yellow (#FCE166). oklch(90.9% 0.143 105), rgb(239, 230, 109).
Aa
Black text reads best on this color (16.20:1).
About this color
#EFE66D is a very light, vivid yellow. In OKLCH its lightness is 91%, its chroma 0.143 and its hue 105°. Its hue sits on the warm side of the wheel. The nearest named color is Sand Yellow (#FCE166), ΔE 0.020 away. Black text reads best on it, at 16.20:1.
| Hue family | Yellows |
| Lightness | very light (91%) |
| Chroma | vivid (0.143) |
| Temperature | warm |
| Nearest name | Sand Yellow (#FCE166) |
| Black text | 16.20:1 |
| White text | 1.29:1 |
Values
| HEX | #EFE66D |
| RGB | rgb(239, 230, 109) |
| HSL | hsl(56, 80%, 68%) |
| OKLCH | oklch(90.9% 0.143 105) |
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 #EFE66D | 1.29:1 | Fails | Lc -16.8 | Dividers and decoration only |
| Black text on #EFE66D | 16.20:1 | AAA | Lc 89.1 | Fine for body text |
| #EFE66D text on white | 1.29:1 | Fails | Lc 14.6 | Not readable |
| #EFE66D text on black | 16.20:1 | AAA | Lc -89.2 | 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
#F7F7E4
oklch(97.1% 0.025 106.9)
-
Step 100
100
#EFEDC4
oklch(93.7% 0.054 105.1)
-
Step 200
200 (this color)
#EFE66D
oklch(90.9% 0.143 105)
-
Step 300
300
#D2C500
oklch(80.8% 0.171 104.8)
-
Step 400
400
#AFA500
oklch(70.8% 0.15 105.3)
-
Step 500
500
#968D00
oklch(63.1% 0.134 105.1)
-
Step 600
600
#7E7600
oklch(55.5% 0.118 104.9)
-
Step 700
700
#6A6300
oklch(49.1% 0.104 104.8)
-
Step 800
800
#575100
oklch(42.7% 0.09 104.7)
-
Step 900
900
#484300
oklch(37.6% 0.08 104.8)
-
Step 950
950
#2B2800
oklch(27.1% 0.058 105.3)
#EFE66D 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) | #F7DF61 | 0.019 |
| Deuteranopia (no green cones) | #FBE573 | 0.019 |
| Tritanopia (no blue cones) | #FFD9CB | 0.129 |
| Achromatopsia (no color) | #E2E2E2 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EFE66D
#EFE66D
oklch(90.9% 0.143 105)
- #DDDDFF
#DDDDFF
oklch(90.8% 0.046 285.4)
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 #EFE66D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sand Yellow #FCE166 ΔE 0.020
- Yellow Tan #FFE36E ΔE 0.024
- Dull Yellow #EEDC5B ΔE 0.026
- Pale Gold #FDDE6C ΔE 0.027
- Sandy Yellow #FDEE73 ΔE 0.030
- Khaki #F0E68C ΔE 0.031
- Sandy #F1DA7A ΔE 0.037
- Light Mustard #F7D560 ΔE 0.041
Use #EFE66D 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.