#EFBC21
Closest named color: Golden (#F5BF03). oklch(81.9% 0.161 87.9), rgb(239, 188, 33).
Aa
Black text reads best on this color (11.88:1).
About this color
#EFBC21 is a light, vivid orange. In OKLCH its lightness is 82%, its chroma 0.161 and its hue 88°. Its hue sits on the warm side of the wheel. The nearest named color is Golden (#F5BF03), ΔE 0.014 away. Black text reads best on it, at 11.88:1.
| Hue family | Oranges |
| Lightness | light (82%) |
| Chroma | vivid (0.161) |
| Temperature | warm |
| Nearest name | Golden (#F5BF03) |
| Black text | 11.88:1 |
| White text | 1.76:1 |
Values
| HEX | #EFBC21 |
| RGB | rgb(239, 188, 33) |
| HSL | hsl(45, 87%, 53%) |
| OKLCH | oklch(81.9% 0.161 87.9) |
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 #EFBC21 | 1.76:1 | Fails | Lc -36.2 | Non-text elements, placeholder text |
| Black text on #EFBC21 | 11.88:1 | AAA | Lc 71.7 | Content text, not long reading |
| #EFBC21 text on white | 1.76:1 | Fails | Lc 32.2 | Non-text elements, placeholder text |
| #EFBC21 text on black | 11.88:1 | AAA | Lc -70.5 | 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
#FBF5E6
oklch(97.1% 0.021 88.7)
-
Step 100
100
#F7E9C7
oklch(93.7% 0.047 88.3)
-
Step 200
200
#F2D694
oklch(88.4% 0.089 87.5)
-
Step 300
300 (this color)
#EFBC21
oklch(81.9% 0.161 87.9)
-
Step 400
400
#C69A00
oklch(70.7% 0.145 88.1)
-
Step 500
500
#AA8400
oklch(63.2% 0.129 88.2)
-
Step 600
600
#8F6E00
oklch(55.5% 0.114 87.7)
-
Step 700
700
#785C00
oklch(49% 0.1 87.9)
-
Step 800
800
#634B00
oklch(42.6% 0.087 87.5)
-
Step 900
900
#533E00
oklch(37.6% 0.077 86.9)
-
Step 950
950
#322400
oklch(27% 0.055 86.6)
#EFBC21 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) | #D4BB00 | 0.044 |
| Deuteranopia (no green cones) | #E0C82D | 0.035 |
| Tritanopia (no blue cones) | #FFAAA1 | 0.144 |
| Achromatopsia (no color) | #C3C3C3 | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EFBC21
#EFBC21
oklch(81.9% 0.161 87.9)
- #AAC2FF
#AAC2FF
oklch(81.8% 0.09 267.8)
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 #EFBC21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Golden #F5BF03 ΔE 0.014
- Golden Rod #F9BC08 ΔE 0.016
- Orangey Yellow #FDB915 ΔE 0.022
- Marigold #FCC006 ΔE 0.024
- Macaroni And Cheese #EFB435 ΔE 0.024
- Amber #FFBE0B ΔE 0.026
- Maximum Yellow Red #FCBF49 ΔE 0.032
- Yellow Orange #FCB001 ΔE 0.032
Use #EFBC21 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.