#600303
Closest named color: Claret (#680018). oklch(31% 0.124 28.6), rgb(96, 3, 3).
Aa
White text reads best on this color (13.89:1).
About this color
#600303 is a dark, moderately saturated red. In OKLCH its lightness is 31%, its chroma 0.124 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Claret (#680018), ΔE 0.029 away. White text reads best on it, at 13.89:1.
| Hue family | Reds |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.124) |
| Temperature | warm |
| Nearest name | Claret (#680018) |
| Black text | 1.51:1 |
| White text | 13.89:1 |
Values
| HEX | #600303 |
| RGB | rgb(96, 3, 3) |
| HSL | hsl(0, 94%, 19%) |
| OKLCH | oklch(31% 0.124 28.6) |
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 #600303 | 13.89:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #600303 | 1.51:1 | Fails | Lc 0.0 | Not readable |
| #600303 text on white | 13.89:1 | AAA | Lc 98.9 | Preferred for body text |
| #600303 text on black | 1.51:1 | Fails | Lc 0.0 | 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 950.
-
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
#FFA599
oklch(80.8% 0.109 28)
-
Step 400
400
#FF6A5A
oklch(70.7% 0.185 28.7)
-
Step 500
500
#FF0E12
oklch(63.1% 0.255 28.6)
-
Step 600
600
#D90008
oklch(55.6% 0.228 28.6)
-
Step 700
700
#B80005
oklch(49.2% 0.201 28.7)
-
Step 800
800
#980003
oklch(42.7% 0.175 28.7)
-
Step 900
900
#800002
oklch(37.7% 0.154 28.7)
-
Step 950
950 (this color)
#600303
oklch(31% 0.124 28.6)
#600303 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) | #252002 | 0.135 |
| Deuteranopia (no green cones) | #3B3300 | 0.120 |
| Tritanopia (no blue cones) | #6B0005 | 0.025 |
| Achromatopsia (no color) | #2C2C2C | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #600303
#600303
oklch(31% 0.124 28.6)
- #00373E
#00373E
oklch(30.8% 0.053 208.6)
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 #600303, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Claret #680018 ΔE 0.029
- Reddy Brown #6E1005 ΔE 0.039
- Burgundy #610023 ΔE 0.041
- Blood #770001 ΔE 0.053
- Mahogany #4A0100 ΔE 0.055
- Wine Red #7B0323 ΔE 0.072
- Chocolate Brown #411900 ΔE 0.073
- Maroon #800000 ΔE 0.074
Use #600303 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.