#EFE599
Closest named color: Khaki (#F0E68C). oklch(91.3% 0.096 101.7), rgb(239, 229, 153).
Aa
Black text reads best on this color (16.33:1).
About this color
#EFE599 is a very light, moderately saturated yellow. In OKLCH its lightness is 91%, its chroma 0.096 and its hue 102°. Its hue sits on the warm side of the wheel. The nearest named color is Khaki (#F0E68C), ΔE 0.016 away. Black text reads best on it, at 16.33:1.
| Hue family | Yellows |
| Lightness | very light (91%) |
| Chroma | moderately saturated (0.096) |
| Temperature | warm |
| Nearest name | Khaki (#F0E68C) |
| Black text | 16.33:1 |
| White text | 1.28:1 |
Values
| HEX | #EFE599 |
| RGB | rgb(239, 229, 153) |
| HSL | hsl(53, 73%, 77%) |
| OKLCH | oklch(91.3% 0.096 101.7) |
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 #EFE599 | 1.28:1 | Fails | Lc -16.3 | Dividers and decoration only |
| Black text on #EFE599 | 16.33:1 | AAA | Lc 89.5 | Fine for body text |
| #EFE599 text on white | 1.28:1 | Fails | Lc 14.1 | Not readable |
| #EFE599 text on black | 16.33:1 | AAA | Lc -89.7 | 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 100.
-
Step 50
50
#F7F6EA
oklch(97.1% 0.016 102.8)
-
Step 100
100 (this color)
#EFE599
oklch(91.3% 0.096 101.7)
-
Step 200
200
#E2DBA7
oklch(88.4% 0.068 101.2)
-
Step 300
300
#D1C35D
oklch(80.8% 0.124 101.6)
-
Step 400
400
#B4A200
oklch(70.6% 0.147 101.4)
-
Step 500
500
#9A8B00
oklch(63% 0.132 101.8)
-
Step 600
600
#827500
oklch(55.7% 0.116 101.7)
-
Step 700
700
#6D6200
oklch(49.1% 0.103 101.8)
-
Step 800
800
#595000
oklch(42.7% 0.089 102)
-
Step 900
900
#4A4200
oklch(37.6% 0.079 101.6)
-
Step 950
950
#2C2700
oklch(27% 0.057 102.1)
#EFE599 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) | #F2E094 | 0.012 |
| Deuteranopia (no green cones) | #F6E59C | 0.011 |
| Tritanopia (no blue cones) | #FBDBD2 | 0.088 |
| Achromatopsia (no color) | #E3E3E3 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EFE599
#EFE599
oklch(91.3% 0.096 101.7)
- #DDDFFF
#DDDFFF
oklch(91.2% 0.044 282.7)
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 #EFE599, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Khaki #F0E68C ΔE 0.016
- Pale Goldenrod #EEE8AA ΔE 0.019
- Light Gold #F3DE8A ΔE 0.020
- Light Khaki #E6F2A2 ΔE 0.032
- Light Tan #FBEEAC ΔE 0.034
- Pale Peach #FFE5AD ΔE 0.035
- Sandy #F1DA7A ΔE 0.036
- Lemon Meringue #EAE2B7 ΔE 0.040
Use #EFE599 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.