#930303
Closest named color: Blood Red (#980002). oklch(41.8% 0.17 29), rgb(147, 3, 3).
Aa
White text reads best on this color (9.31:1).
About this color
#930303 is a dark, vivid red. In OKLCH its lightness is 42%, its chroma 0.170 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Blood Red (#980002), ΔE 0.011 away. White text reads best on it, at 9.31:1.
| Hue family | Reds |
| Lightness | dark (42%) |
| Chroma | vivid (0.170) |
| Temperature | warm |
| Nearest name | Blood Red (#980002) |
| Black text | 2.25:1 |
| White text | 9.31:1 |
Values
| HEX | #930303 |
| RGB | rgb(147, 3, 3) |
| HSL | hsl(0, 96%, 29%) |
| OKLCH | oklch(41.8% 0.17 29) |
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 #930303 | 9.31:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #930303 | 2.25:1 | Fails | Lc 14.9 | Not readable |
| #930303 text on white | 9.31:1 | AAA | Lc 89.1 | Fine for body text |
| #930303 text on black | 2.25:1 | Fails | Lc -13.1 | 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 800.
-
Step 50
50
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FDE3DF
oklch(93.6% 0.029 28.1)
-
Step 200
200
#FCCCC5
oklch(88.5% 0.056 27.9)
-
Step 300
300
#FAA89C
oklch(80.8% 0.099 28.6)
-
Step 400
400
#F37565
oklch(70.7% 0.158 29)
-
Step 500
500
#EB4739
oklch(63.2% 0.203 29)
-
Step 600
600
#D6140F
oklch(55.6% 0.22 29)
-
Step 700
700
#B80002
oklch(49.2% 0.202 29)
-
Step 800
800 (this color)
#930303
oklch(41.8% 0.17 29)
-
Step 900
900
#781811
oklch(37.6% 0.132 29.1)
-
Step 950
950
#47110C
oklch(27% 0.083 29)
#930303 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) | #3C3400 | 0.186 |
| Deuteranopia (no green cones) | #5C5100 | 0.165 |
| Tritanopia (no blue cones) | #A30008 | 0.035 |
| Achromatopsia (no color) | #474747 | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #930303
#930303
oklch(41.8% 0.17 29)
- #005761
#005761
oklch(41.8% 0.072 208.2)
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 #930303, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blood Red #980002 ΔE 0.011
- Brick Red #8F1402 ΔE 0.013
- Deep Red #9A0200 ΔE 0.015
- Dark Red #8B0000 ΔE 0.019
- Carmine #9D0216 ΔE 0.025
- Auburn #9B2226 ΔE 0.041
- Brown Red #922B05 ΔE 0.043
- Maroon #800000 ΔE 0.044
Use #930303 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.