#EFC548
Closest named color: Maximum Yellow Red (#FCBF49). oklch(83.8% 0.146 89.9), rgb(239, 197, 72).
Aa
Black text reads best on this color (12.75:1).
About this color
#EFC548 is a light, vivid orange. In OKLCH its lightness is 84%, its chroma 0.146 and its hue 90°. Its hue sits on the warm side of the wheel. The nearest named color is Maximum Yellow Red (#FCBF49), ΔE 0.024 away. Black text reads best on it, at 12.75:1.
| Hue family | Oranges |
| Lightness | light (84%) |
| Chroma | vivid (0.146) |
| Temperature | warm |
| Nearest name | Maximum Yellow Red (#FCBF49) |
| Black text | 12.75:1 |
| White text | 1.64:1 |
Values
| HEX | #EFC548 |
| RGB | rgb(239, 197, 72) |
| HSL | hsl(45, 84%, 61%) |
| OKLCH | oklch(83.8% 0.146 89.9) |
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 #EFC548 | 1.64:1 | Fails | Lc -32.1 | Non-text elements, placeholder text |
| Black text on #EFC548 | 12.75:1 | AAA | Lc 75.3 | Fine for body text |
| #EFC548 text on white | 1.64:1 | Fails | Lc 28.5 | Dividers and decoration only |
| #EFC548 text on black | 12.75:1 | AAA | Lc -74.4 | 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
#FAF5E7
oklch(97% 0.019 90.5)
-
Step 100
100
#F5E9CB
oklch(93.6% 0.042 88.8)
-
Step 200
200
#EED79B
oklch(88.4% 0.081 89.5)
-
Step 300
300 (this color)
#EFC548
oklch(83.8% 0.146 89.9)
-
Step 400
400
#C49B00
oklch(70.7% 0.145 89.7)
-
Step 500
500
#A88500
oklch(63.2% 0.129 90)
-
Step 600
600
#8D6F00
oklch(55.5% 0.113 89.9)
-
Step 700
700
#775D00
oklch(49.1% 0.1 89.6)
-
Step 800
800
#624C00
oklch(42.8% 0.087 89.5)
-
Step 900
900
#513F00
oklch(37.6% 0.077 90.4)
-
Step 950
950
#312500
oklch(27.1% 0.055 90.3)
#EFC548 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) | #DBC337 | 0.035 |
| Deuteranopia (no green cones) | #E5CE4E | 0.025 |
| Tritanopia (no blue cones) | #FFB5AB | 0.131 |
| Achromatopsia (no color) | #CACACA | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EFC548
#EFC548
oklch(83.8% 0.146 89.9)
- #B6C8FF
#B6C8FF
oklch(83.8% 0.08 270.5)
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 #EFC548, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Maximum Yellow Red #FCBF49 ΔE 0.024
- Golden #F5BF03 ΔE 0.025
- Marigold #FCC006 ΔE 0.028
- Maize #F4D054 ΔE 0.029
- Golden Rod #F9BC08 ΔE 0.029
- Saffron #E9C46A ΔE 0.030
- Golden Yellow #FEC615 ΔE 0.030
- Sunflower #FFC512 ΔE 0.030
Use #EFC548 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.