#12101C
Closest named color: Rich Navy (#001219). oklch(18.2% 0.024 291.4), rgb(18, 16, 28).
Aa
White text reads best on this color (18.80:1).
About this color
#12101C is a very dark close to neutral grey. In OKLCH its lightness is 18%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Rich Navy (#001219), ΔE 0.034 away. White text reads best on it, at 18.80:1.
| Hue family | Neutrals |
| Lightness | very dark (18%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.11:1 |
| White text | 18.80:1 |
Values
| HEX | #12101C |
| RGB | rgb(18, 16, 28) |
| HSL | hsl(250, 27%, 9%) |
| OKLCH | oklch(18.2% 0.024 291.4) |
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 #12101C | 18.80:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #12101C | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #12101C text on white | 18.80:1 | AAA | Lc 105.3 | Preferred for body text |
| #12101C text on black | 1.11:1 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#EAE9EF
oklch(93.7% 0.008 293.9)
-
Step 200
200
#D9D7E3
oklch(88.4% 0.016 293.7)
-
Step 300
300
#C0BED2
oklch(80.9% 0.028 290.4)
-
Step 400
400
#A09CBC
oklch(70.7% 0.046 290.9)
-
Step 500
500
#8983AB
oklch(63% 0.06 291.5)
-
Step 600
600
#736D96
oklch(55.6% 0.063 290.9)
-
Step 700
700
#615B80
oklch(49.2% 0.059 291.5)
-
Step 800
800
#4F4A68
oklch(42.6% 0.049 291.8)
-
Step 900
900
#423E55
oklch(37.7% 0.039 292.4)
-
Step 950
950 (this color)
#12101C
oklch(18.2% 0.024 291.4)
#12101C 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) | #0D121C | 0.011 |
| Deuteranopia (no green cones) | #0D111C | 0.010 |
| Tritanopia (no blue cones) | #101214 | 0.021 |
| Achromatopsia (no color) | #121212 | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12101C
#12101C
oklch(18.2% 0.024 291.4)
- #121306
#121306
oklch(18.1% 0.025 112.3)
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 #12101C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.034
- Almost Black #070D0D ΔE 0.040
- Rich Black #0D1B2A ΔE 0.043
- Very Dark Brown #1D0200 ΔE 0.071
- Midnight #03012D ΔE 0.077
- Dark #1B2431 ΔE 0.078
- Dark Navy #000435 ΔE 0.078
- Dark Navy Blue #00022E ΔE 0.079
Use #12101C 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.