#EFA100
Closest named color: Gamboge (#EE9B00). oklch(76.7% 0.162 74.3), rgb(239, 161, 0).
Aa
Black text reads best on this color (9.76:1).
About this color
#EFA100 is a medium-light, vivid orange. In OKLCH its lightness is 77%, its chroma 0.162 and its hue 74°. Its hue sits on the warm side of the wheel. The nearest named color is Gamboge (#EE9B00), ΔE 0.015 away. Black text reads best on it, at 9.76:1.
| Hue family | Oranges |
| Lightness | medium-light (77%) |
| Chroma | vivid (0.162) |
| Temperature | warm |
| Nearest name | Gamboge (#EE9B00) |
| Black text | 9.76:1 |
| White text | 2.14:1 |
Values
| HEX | #EFA100 |
| RGB | rgb(239, 161, 0) |
| HSL | hsl(40, 100%, 47%) |
| OKLCH | oklch(76.7% 0.162 74.3) |
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 #EFA100 | 2.14:1 | Fails | Lc -46.5 | Large or bold text, headings |
| Black text on #EFA100 | 9.76:1 | AAA | Lc 62.1 | Content text, not long reading |
| #EFA100 text on white | 2.14:1 | Fails | Lc 41.8 | Non-text elements, placeholder text |
| #EFA100 text on black | 9.76:1 | AAA | Lc -60.4 | 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
#FEF4E6
oklch(97.1% 0.021 76.5)
-
Step 100
100
#FDE6C8
oklch(93.6% 0.047 74.5)
-
Step 200
200
#FDD196
oklch(88.5% 0.09 74.4)
-
Step 300
300 (this color)
#EFA100
oklch(76.7% 0.162 74.3)
-
Step 400
400
#D79000
oklch(70.7% 0.15 74.1)
-
Step 500
500
#B87B00
oklch(63% 0.133 74.4)
-
Step 600
600
#9B6700
oklch(55.5% 0.117 74.4)
-
Step 700
700
#835600
oklch(49.1% 0.104 74.1)
-
Step 800
800
#6C4600
oklch(42.7% 0.091 73.9)
-
Step 900
900
#5A3A00
oklch(37.7% 0.08 74.4)
-
Step 950
950
#372100
oklch(27% 0.057 72.9)
#EFA100 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) | #BDA600 | 0.081 |
| Deuteranopia (no green cones) | #CFB810 | 0.073 |
| Tritanopia (no blue cones) | #FF8C89 | 0.134 |
| Achromatopsia (no color) | #B1B1B1 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EFA100
#EFA100
oklch(76.7% 0.162 74.3)
- #7CB6FF
#7CB6FF
oklch(76.6% 0.122 254.7)
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 #EFA100, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gamboge #EE9B00 ΔE 0.015
- Squash #F2AB15 ΔE 0.024
- Orange #FFA500 ΔE 0.029
- Mango #FFA62B ΔE 0.033
- Goldenrod #DAA520 ΔE 0.034
- Tangerine #FF9408 ΔE 0.039
- Orange Yellow #FFAD01 ΔE 0.041
- Light Orange #FDAA48 ΔE 0.043
Use #EFA100 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.