#830309
Closest named color: Maroon (#800000). oklch(38.5% 0.155 27.5), rgb(131, 3, 9).
Aa
White text reads best on this color (10.59:1).
About this color
#830309 is a dark, vivid red. In OKLCH its lightness is 39%, its chroma 0.155 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Maroon (#800000), ΔE 0.010 away. White text reads best on it, at 10.59:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | vivid (0.155) |
| Temperature | warm |
| Nearest name | Maroon (#800000) |
| Black text | 1.98:1 |
| White text | 10.59:1 |
Values
| HEX | #830309 |
| RGB | rgb(131, 3, 9) |
| HSL | hsl(357, 96%, 26%) |
| OKLCH | oklch(38.5% 0.155 27.5) |
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 #830309 | 10.59:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #830309 | 1.98:1 | Fails | Lc 11.6 | Not readable |
| #830309 text on white | 10.59:1 | AAA | Lc 92.3 | Preferred for body text |
| #830309 text on black | 1.98:1 | Fails | Lc -10.1 | 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 900.
-
Step 50
50
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FFE2DE
oklch(93.5% 0.033 27.1)
-
Step 200
200
#FFCBC3
oklch(88.6% 0.06 28.4)
-
Step 300
300
#FFA59A
oklch(80.9% 0.109 27.3)
-
Step 400
400
#FF695D
oklch(70.7% 0.185 27.4)
-
Step 500
500
#F92A2A
oklch(63.2% 0.238 27.5)
-
Step 600
600
#D90013
oklch(55.7% 0.227 27.6)
-
Step 700
700
#B7000F
oklch(49% 0.2 27.4)
-
Step 800
800
#98000A
oklch(42.7% 0.174 27.5)
-
Step 900
900 (this color)
#830309
oklch(38.5% 0.155 27.5)
-
Step 950
950
#4C0807
oklch(27% 0.099 27.6)
#830309 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) | #342E06 | 0.172 |
| Deuteranopia (no green cones) | #524800 | 0.153 |
| Tritanopia (no blue cones) | #910008 | 0.031 |
| Achromatopsia (no color) | #3F3F3F | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #830309
#830309
oklch(38.5% 0.155 27.5)
- #004D56
#004D56
oklch(38.4% 0.066 208.2)
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 #830309, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Maroon #800000 ΔE 0.010
- Dark Red #8B0000 ΔE 0.018
- Blood #770001 ΔE 0.029
- Wine Red #7B0323 ΔE 0.033
- Brick Red #8F1402 ΔE 0.034
- Bordeaux #7B002C ΔE 0.046
- Reddy Brown #6E1005 ΔE 0.046
- Blood Red #980002 ΔE 0.047
Use #830309 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.