#971B05
Closest named color: Deep Red (#9A0200). oklch(43.8% 0.162 32), rgb(151, 27, 5).
Aa
White text reads best on this color (8.48:1).
About this color
#971B05 is a dark, vivid red. In OKLCH its lightness is 44%, its chroma 0.162 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Red (#9A0200), ΔE 0.018 away. White text reads best on it, at 8.48:1.
| Hue family | Reds |
| Lightness | dark (44%) |
| Chroma | vivid (0.162) |
| Temperature | warm |
| Nearest name | Deep Red (#9A0200) |
| Black text | 2.47:1 |
| White text | 8.48:1 |
Values
| HEX | #971B05 |
| RGB | rgb(151, 27, 5) |
| HSL | hsl(9, 94%, 31%) |
| OKLCH | oklch(43.8% 0.162 32) |
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 #971B05 | 8.48:1 | AAA | Lc -92.3 | Preferred for body text |
| Black text on #971B05 | 2.47:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #971B05 text on white | 8.48:1 | AAA | Lc 87.6 | Fine for body text |
| #971B05 text on black | 2.47:1 | Fails | Lc -14.6 | Not readable |
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 800.
-
Step 50
50
#FEF3F0
oklch(97.2% 0.013 35.7)
-
Step 100
100
#FCE4DF
oklch(93.7% 0.027 31.7)
-
Step 200
200
#FACDC4
oklch(88.5% 0.053 31.3)
-
Step 300
300
#F7AA9A
oklch(80.8% 0.094 32.2)
-
Step 400
400
#F07962
oklch(70.8% 0.151 32.3)
-
Step 500
500
#E64E34
oklch(63% 0.193 32.1)
-
Step 600
600
#D22501
oklch(55.6% 0.21 32.1)
-
Step 700
700
#B21D00
oklch(49.1% 0.186 32)
-
Step 800
800 (this color)
#971B05
oklch(43.8% 0.162 32)
-
Step 900
900
#761D0E
oklch(37.7% 0.126 32.1)
-
Step 950
950
#46130A
oklch(27.1% 0.08 32.3)
#971B05 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) | #443B00 | 0.174 |
| Deuteranopia (no green cones) | #625600 | 0.154 |
| Tritanopia (no blue cones) | #A70019 | 0.038 |
| Achromatopsia (no color) | #4D4D4D | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #971B05
#971B05
oklch(43.8% 0.162 32)
- #005D6A
#005D6A
oklch(43.9% 0.076 211.2)
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 #971B05, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Red #9A0200 ΔE 0.018
- Blood Red #980002 ΔE 0.020
- Brick Red #8F1402 ΔE 0.021
- Burnt Red #9F2305 ΔE 0.022
- Brown Red #922B05 ΔE 0.023
- Carmine #9D0216 ΔE 0.025
- Auburn #9B2226 ΔE 0.027
- Red Brown #8B2E16 ΔE 0.031
Use #971B05 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.