#630004
Closest named color: Claret (#680018). oklch(31.4% 0.128 27.5), rgb(99, 0, 4).
Aa
White text reads best on this color (13.70:1).
About this color
#630004 is a dark, moderately saturated red. In OKLCH its lightness is 31%, its chroma 0.128 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Claret (#680018), ΔE 0.024 away. White text reads best on it, at 13.70:1.
| Hue family | Reds |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.128) |
| Temperature | warm |
| Nearest name | Claret (#680018) |
| Black text | 1.53:1 |
| White text | 13.70:1 |
Values
| HEX | #630004 |
| RGB | rgb(99, 0, 4) |
| HSL | hsl(358, 100%, 19%) |
| OKLCH | oklch(31.4% 0.128 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 #630004 | 13.70:1 | AAA | Lc -101.8 | Preferred for body text |
| Black text on #630004 | 1.53:1 | Fails | Lc 0.0 | Not readable |
| #630004 text on white | 13.70:1 | AAA | Lc 98.4 | Preferred for body text |
| #630004 text on black | 1.53:1 | 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
#FFA59A
oklch(80.9% 0.109 27.3)
-
Step 400
400
#FF695D
oklch(70.7% 0.185 27.4)
-
Step 500
500
#FF0C1C
oklch(63.1% 0.254 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
#800007
oklch(37.7% 0.154 27.5)
-
Step 950
950 (this color)
#630004
oklch(31.4% 0.128 27.5)
#630004 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) | #252003 | 0.142 |
| Deuteranopia (no green cones) | #3C3500 | 0.128 |
| Tritanopia (no blue cones) | #6E0003 | 0.026 |
| Achromatopsia (no color) | #2D2D2D | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #630004
#630004
oklch(31.4% 0.128 27.5)
- #00393F
#00393F
oklch(31.5% 0.054 206.3)
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 #630004, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Claret #680018 ΔE 0.024
- Reddy Brown #6E1005 ΔE 0.035
- Burgundy #610023 ΔE 0.039
- Blood #770001 ΔE 0.047
- Mahogany #4A0100 ΔE 0.061
- Wine Red #7B0323 ΔE 0.066
- Maroon #800000 ΔE 0.068
- Bordeaux #7B002C ΔE 0.073
Use #630004 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.