#991B27
Closest named color: Auburn (#9B2226). oklch(44.5% 0.16 22.4), rgb(153, 27, 39).
Aa
White text reads best on this color (8.26:1).
About this color
#991B27 is a dark, vivid red. In OKLCH its lightness is 45%, its chroma 0.160 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.011 away. White text reads best on it, at 8.26:1.
| Hue family | Reds |
| Lightness | dark (45%) |
| Chroma | vivid (0.160) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.54:1 |
| White text | 8.26:1 |
Values
| HEX | #991B27 |
| RGB | rgb(153, 27, 39) |
| HSL | hsl(354, 70%, 35%) |
| OKLCH | oklch(44.5% 0.16 22.4) |
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 #991B27 | 8.26:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #991B27 | 2.54:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #991B27 text on white | 8.26:1 | AAA | Lc 87.0 | Fine for body text |
| #991B27 text on black | 2.54:1 | Fails | Lc -15.1 | 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 800.
-
Step 50
50
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FCE3E2
oklch(93.6% 0.028 20.4)
-
Step 200
200
#FACCC9
oklch(88.4% 0.052 22.6)
-
Step 300
300
#F7A9A5
oklch(80.9% 0.093 22.6)
-
Step 400
400
#EF7675
oklch(70.6% 0.15 22.1)
-
Step 500
500
#E64B51
oklch(63.1% 0.191 22.4)
-
Step 600
600
#D12035
oklch(55.5% 0.207 22.4)
-
Step 700
700
#B50B28
oklch(49.2% 0.193 22.4)
-
Step 800
800 (this color)
#991B27
oklch(44.5% 0.16 22.4)
-
Step 900
900
#761B21
oklch(37.7% 0.125 22.2)
-
Step 950
950
#461214
oklch(27.1% 0.08 22)
#991B27 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) | #433D26 | 0.176 |
| Deuteranopia (no green cones) | #625822 | 0.160 |
| Tritanopia (no blue cones) | #A90021 | 0.033 |
| Achromatopsia (no color) | #4E4E4E | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #991B27
#991B27
oklch(44.5% 0.16 22.4)
- #006066
#006066
oklch(44.5% 0.076 202.3)
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 #991B27, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.011
- Carmine #9D0216 ΔE 0.020
- Deep Red #9A0200 ΔE 0.029
- Blood Red #980002 ΔE 0.030
- Burnt Red #9F2305 ΔE 0.035
- Brown #A52A2A ΔE 0.036
- Cranberry #9E003A ΔE 0.037
- Brick Red #8F1402 ΔE 0.037
Use #991B27 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.