#12101E
Closest named color: Rich Navy (#001219). oklch(18.3% 0.028 289.8), rgb(18, 16, 30).
Aa
White text reads best on this color (18.77:1).
About this color
#12101E is a very dark close to neutral grey. In OKLCH its lightness is 18%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Rich Navy (#001219), ΔE 0.036 away. White text reads best on it, at 18.77:1.
| Hue family | Neutrals |
| Lightness | very dark (18%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.11:1 |
| White text | 18.77:1 |
Values
| HEX | #12101E |
| RGB | rgb(18, 16, 30) |
| HSL | hsl(249, 30%, 9%) |
| OKLCH | oklch(18.3% 0.028 289.8) |
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 #12101E | 18.77:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #12101E | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #12101E text on white | 18.77:1 | AAA | Lc 105.3 | Preferred for body text |
| #12101E 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
#E9E9F0
oklch(93.6% 0.009 286.2)
-
Step 200
200
#D8D7E5
oklch(88.4% 0.019 289.3)
-
Step 300
300
#C0BDD5
oklch(80.8% 0.034 291.4)
-
Step 400
400
#9F9BC1
oklch(70.6% 0.055 289.7)
-
Step 500
500
#8883B1
oklch(63.1% 0.069 289.3)
-
Step 600
600
#726C9C
oklch(55.6% 0.074 289.5)
-
Step 700
700
#605A86
oklch(49.2% 0.07 289.8)
-
Step 800
800
#4E4A6D
oklch(42.8% 0.057 289)
-
Step 900
900
#413E58
oklch(37.8% 0.044 289.4)
-
Step 950
950 (this color)
#12101E
oklch(18.3% 0.028 289.8)
#12101E 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) | #0C121F | 0.012 |
| Deuteranopia (no green cones) | #0C111E | 0.011 |
| Tritanopia (no blue cones) | #0F1215 | 0.023 |
| Achromatopsia (no color) | #121212 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12101E
#12101E
oklch(18.3% 0.028 289.8)
- #131305
#131305
oklch(18.2% 0.027 108.8)
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 #12101E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.036
- Rich Black #0D1B2A ΔE 0.041
- Almost Black #070D0D ΔE 0.043
- Midnight #03012D ΔE 0.074
- Very Dark Brown #1D0200 ΔE 0.074
- Dark Navy #000435 ΔE 0.075
- Dark #1B2431 ΔE 0.076
- Dark Navy Blue #00022E ΔE 0.077
Use #12101E 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.