#230403
Closest named color: Very Dark Brown (#1D0200). oklch(17.2% 0.056 27.8), rgb(35, 4, 3).
Aa
White text reads best on this color (19.26:1).
About this color
#230403 is a very dark, muted red. In OKLCH its lightness is 17%, its chroma 0.056 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.022 away. White text reads best on it, at 19.26:1.
| Hue family | Reds |
| Lightness | very dark (17%) |
| Chroma | muted (0.056) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.09:1 |
| White text | 19.26:1 |
Values
| HEX | #230403 |
| RGB | rgb(35, 4, 3) |
| HSL | hsl(2, 84%, 7%) |
| OKLCH | oklch(17.2% 0.056 27.8) |
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 #230403 | 19.26:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #230403 | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #230403 text on white | 19.26:1 | AAA | Lc 105.2 | Preferred for body text |
| #230403 text on black | 1.09:1 | 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
#FBF3F2
oklch(97% 0.009 26)
-
Step 100
100
#F6E5E3
oklch(93.5% 0.019 25.6)
-
Step 200
200
#F1D1CC
oklch(88.6% 0.037 28.4)
-
Step 300
300
#E8B1A9
oklch(80.9% 0.066 28)
-
Step 400
400
#DA867C
oklch(70.6% 0.105 27.3)
-
Step 500
500
#CE665A
oklch(63.1% 0.134 28.2)
-
Step 600
600
#B94A40
oklch(55.5% 0.146 27.9)
-
Step 700
700
#9F3B32
oklch(49.1% 0.135 28.2)
-
Step 800
800
#82312A
oklch(42.7% 0.113 27.8)
-
Step 900
900
#682C26
oklch(37.6% 0.088 27.8)
-
Step 950
950 (this color)
#230403
oklch(17.2% 0.056 27.8)
#230403 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) | #0C0A03 | 0.059 |
| Deuteranopia (no green cones) | #141102 | 0.055 |
| Tritanopia (no blue cones) | #280004 | 0.017 |
| Achromatopsia (no color) | #0E0E0E | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #230403
#230403
oklch(17.2% 0.056 27.8)
- #001316
#001316
oklch(17.1% 0.029 207.2)
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 #230403, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.022
- Dark Maroon #3C0008 ΔE 0.065
- Almost Black #070D0D ΔE 0.068
- Deep Brown #410200 ΔE 0.077
- Rich Navy #001219 ΔE 0.086
- Dark Brown #341C02 ΔE 0.089
- Rich Black #0D1B2A ΔE 0.097
- Mahogany #4A0100 ΔE 0.099
Use #230403 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.