#B1400C
Closest named color: Sinopia (#BB3E03). oklch(52.4% 0.158 40.2), rgb(177, 64, 12).
Aa
White text reads best on this color (5.82:1).
About this color
#B1400C is a medium-dark, vivid orange. In OKLCH its lightness is 52%, its chroma 0.158 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.019 away. White text reads best on it, at 5.82:1.
| Hue family | Oranges |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.158) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.60:1 |
| White text | 5.82:1 |
Values
| HEX | #B1400C |
| RGB | rgb(177, 64, 12) |
| HSL | hsl(19, 87%, 37%) |
| OKLCH | oklch(52.4% 0.158 40.2) |
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 #B1400C | 5.82:1 | AA | Lc -83.4 | Fine for body text |
| Black text on #B1400C | 3.60:1 | AA large text | Lc 25.9 | Dividers and decoration only |
| #B1400C text on white | 5.82:1 | AA | Lc 78.2 | Fine for body text |
| #B1400C text on black | 3.60:1 | AA large text | Lc -23.6 | Dividers and decoration only |
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 600.
-
Step 50
50
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F7E6E0
oklch(93.7% 0.02 40.5)
-
Step 200
200
#F1D1C6
oklch(88.5% 0.039 39.9)
-
Step 300
300
#E9B29E
oklch(80.9% 0.07 40.9)
-
Step 400
400
#DC8769
oklch(70.6% 0.113 40.1)
-
Step 500
500
#D1663F
oklch(63.1% 0.146 40.1)
-
Step 600
600 (this color)
#B1400C
oklch(52.4% 0.158 40.2)
-
Step 700
700
#A23A0C
oklch(49.1% 0.147 40)
-
Step 800
800
#83310F
oklch(42.6% 0.121 40.2)
-
Step 900
900
#6A2D15
oklch(37.8% 0.094 40.8)
-
Step 950
950
#3E1B0E
oklch(27% 0.059 40.5)
#B1400C 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) | #615500 | 0.156 |
| Deuteranopia (no green cones) | #7D6F02 | 0.142 |
| Tritanopia (no blue cones) | #C31F37 | 0.071 |
| Achromatopsia (no color) | #656565 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1400C
#B1400C
oklch(52.4% 0.158 40.2)
- #007690
#007690
oklch(52.4% 0.096 220.3)
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 #B1400C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.019
- Rusty Red #AF2F0D ΔE 0.031
- Cinnamon #AC4F06 ΔE 0.032
- Burnt Umber #A0450E ΔE 0.033
- Russet #A13905 ΔE 0.037
- Brick Orange #C14A09 ΔE 0.040
- Burnt Siena #B75203 ΔE 0.041
- Sienna #A0522D ΔE 0.044
Use #B1400C 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.