#99310F
Closest named color: Brown Red (#922B05). oklch(46.4% 0.145 36.8), rgb(153, 49, 15).
Aa
White text reads best on this color (7.49:1).
About this color
#99310F is a medium-dark, vivid red. In OKLCH its lightness is 46%, its chroma 0.145 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Brown Red (#922B05), ΔE 0.020 away. White text reads best on it, at 7.49:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.145) |
| Temperature | warm |
| Nearest name | Brown Red (#922B05) |
| Black text | 2.80:1 |
| White text | 7.49:1 |
Values
| HEX | #99310F |
| RGB | rgb(153, 49, 15) |
| HSL | hsl(15, 82%, 33%) |
| OKLCH | oklch(46.4% 0.145 36.8) |
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 #99310F | 7.49:1 | AAA | Lc -89.9 | Fine for body text |
| Black text on #99310F | 2.80:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #99310F text on white | 7.49:1 | AAA | Lc 85.0 | Fine for body text |
| #99310F text on black | 2.80:1 | Fails | Lc -17.0 | 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 700.
-
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
#F1D1C7
oklch(88.5% 0.039 38.1)
-
Step 300
300
#EAB1A1
oklch(80.9% 0.071 36.3)
-
Step 400
400
#DD876E
oklch(70.8% 0.112 37)
-
Step 500
500
#D16547
oklch(63.1% 0.144 36.4)
-
Step 600
600
#BC4927
oklch(55.5% 0.156 36.8)
-
Step 700
700 (this color)
#99310F
oklch(46.4% 0.145 36.8)
-
Step 800
800
#843118
oklch(42.8% 0.12 37)
-
Step 900
900
#6A2C1A
oklch(37.7% 0.094 36.9)
-
Step 950
950
#3E1A10
oklch(26.8% 0.059 36.4)
#99310F 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) | #504608 | 0.148 |
| Deuteranopia (no green cones) | #695D07 | 0.134 |
| Tritanopia (no blue cones) | #A90E2B | 0.059 |
| Achromatopsia (no color) | #555555 | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99310F
#99310F
oklch(46.4% 0.145 36.8)
- #006477
#006477
oklch(46.4% 0.083 216.8)
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 #99310F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown Red #922B05 ΔE 0.020
- Burnt Red #9F2305 ΔE 0.021
- Brick #A03623 ΔE 0.023
- Russet #A13905 ΔE 0.026
- Rust Brown #8B3103 ΔE 0.030
- Red Brown #8B2E16 ΔE 0.031
- Rust Red #AA2704 ΔE 0.034
- Auburn #9B2226 ΔE 0.036
Use #99310F 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.