#23100A
Closest named color: Very Dark Brown (#1D0200). oklch(19.9% 0.034 38.3), rgb(35, 16, 10).
Aa
White text reads best on this color (18.26:1).
About this color
#23100A is a very dark, muted red. In OKLCH its lightness is 20%, its chroma 0.034 and its hue 38°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.052 away. White text reads best on it, at 18.26:1.
| Hue family | Reds |
| Lightness | very dark (20%) |
| Chroma | muted (0.034) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.14:1 |
| White text | 18.26:1 |
Values
| HEX | #23100A |
| RGB | rgb(35, 16, 10) |
| HSL | hsl(14, 56%, 9%) |
| OKLCH | oklch(19.9% 0.034 38.3) |
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 #23100A | 18.26:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #23100A | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #23100A text on white | 18.26:1 | AAA | Lc 104.8 | Preferred for body text |
| #23100A text on black | 1.14:1 | 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
#F9F4F3
oklch(97.1% 0.006 31.1)
-
Step 100
100
#F1E7E4
oklch(93.5% 0.012 37.4)
-
Step 200
200
#E7D4CE
oklch(88.4% 0.023 38.3)
-
Step 300
300
#D9B8AE
oklch(80.8% 0.041 37.5)
-
Step 400
400
#C59383
oklch(70.7% 0.065 38.5)
-
Step 500
500
#B57864
oklch(63.1% 0.083 38.9)
-
Step 600
600
#A0604B
oklch(55.6% 0.09 38.9)
-
Step 700
700
#894F3C
oklch(49.1% 0.084 38.9)
-
Step 800
800
#6F4132
oklch(42.7% 0.069 38.8)
-
Step 900
900
#5A372C
oklch(37.6% 0.054 38.2)
-
Step 950
950 (this color)
#23100A
oklch(19.9% 0.034 38.3)
#23100A 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) | #151309 | 0.033 |
| Deuteranopia (no green cones) | #19170A | 0.032 |
| Tritanopia (no blue cones) | #270D0F | 0.017 |
| Achromatopsia (no color) | #151515 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23100A
#23100A
oklch(19.9% 0.034 38.3)
- #011920
#011920
oklch(19.8% 0.034 219.2)
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 #23100A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.052
- Dark Brown #341C02 ΔE 0.061
- Almost Black #070D0D ΔE 0.064
- Dark Maroon #3C0008 ΔE 0.064
- Rich Black #0D1B2A ΔE 0.070
- Deep Brown #410200 ΔE 0.072
- Rich Navy #001219 ΔE 0.072
- Jet #212529 ΔE 0.076
Use #23100A 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.