#991B4B
Closest named color: Berry (#990F4B). oklch(45.3% 0.163 4.4), rgb(153, 27, 75).
Aa
White text reads best on this color (8.03:1).
About this color
#991B4B is a medium-dark, vivid red. In OKLCH its lightness is 45%, its chroma 0.163 and its hue 4°. Its hue sits on the warm side of the wheel. The nearest named color is Berry (#990F4B), ΔE 0.012 away. White text reads best on it, at 8.03:1.
| Hue family | Reds |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.163) |
| Temperature | warm |
| Nearest name | Berry (#990F4B) |
| Black text | 2.61:1 |
| White text | 8.03:1 |
Values
| HEX | #991B4B |
| RGB | rgb(153, 27, 75) |
| HSL | hsl(337, 70%, 35%) |
| OKLCH | oklch(45.3% 0.163 4.4) |
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 #991B4B | 8.03:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #991B4B | 2.61:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #991B4B text on white | 8.03:1 | AAA | Lc 86.4 | Fine for body text |
| #991B4B text on black | 2.61:1 | Fails | Lc -15.7 | 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
#FEF2F4
oklch(97.1% 0.013 5.8)
-
Step 100
100
#FBE3E7
oklch(93.6% 0.027 6.2)
-
Step 200
200
#F9CBD5
oklch(88.5% 0.053 3.6)
-
Step 300
300
#F6A7B9
oklch(81% 0.096 4.5)
-
Step 400
400
#EC7495
oklch(70.7% 0.151 4.3)
-
Step 500
500
#E3477B
oklch(63.1% 0.195 4.4)
-
Step 600
600
#CE1A64
oklch(55.6% 0.212 4.4)
-
Step 700
700
#B10253
oklch(49% 0.196 4.2)
-
Step 800
800 (this color)
#991B4B
oklch(45.3% 0.163 4.4)
-
Step 900
900
#741939
oklch(37.7% 0.127 4.7)
-
Step 950
950
#441122
oklch(27% 0.08 3.7)
#991B4B 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) | #3C414C | 0.184 |
| Deuteranopia (no green cones) | #5D5948 | 0.166 |
| Tritanopia (no blue cones) | #A70031 | 0.045 |
| Achromatopsia (no color) | #505050 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #991B4B
#991B4B
oklch(45.3% 0.163 4.4)
- #00645B
#00645B
oklch(45.2% 0.08 184.2)
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 #991B4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Berry #990F4B ΔE 0.012
- Purple Red #990147 ΔE 0.019
- Mulberry #920A4E ΔE 0.027
- Cranberry #9E003A ΔE 0.027
- Dark Fuchsia #9D0759 ΔE 0.031
- Violet Red #A50055 ΔE 0.033
- Deep Magenta #A0025C ΔE 0.037
- Rouge #AB1239 ΔE 0.046
Use #991B4B 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.