#12142D
Closest named color: Rich Black (#0D1B2A). oklch(20.5% 0.049 277.6), rgb(18, 20, 45).
Aa
White text reads best on this color (18.04:1).
About this color
#12142D is a very dark, muted blue. In OKLCH its lightness is 20%, its chroma 0.049 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.027 away. White text reads best on it, at 18.04:1.
| Hue family | Blues |
| Lightness | very dark (20%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.16:1 |
| White text | 18.04:1 |
Values
| HEX | #12142D |
| RGB | rgb(18, 20, 45) |
| HSL | hsl(236, 43%, 12%) |
| OKLCH | oklch(20.5% 0.049 277.6) |
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 #12142D | 18.04:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #12142D | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #12142D text on white | 18.04:1 | AAA | Lc 104.7 | Preferred for body text |
| #12142D text on black | 1.16:1 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D3D8EF
oklch(88.5% 0.032 276)
-
Step 300
300
#B7BEE7
oklch(81% 0.058 277.4)
-
Step 400
400
#929BDB
oklch(70.7% 0.094 277.5)
-
Step 500
500
#7981D1
oklch(63.1% 0.12 278)
-
Step 600
600
#6269BE
oklch(55.5% 0.131 277.7)
-
Step 700
700
#5157A4
oklch(49% 0.122 277.5)
-
Step 800
800
#434885
oklch(42.8% 0.1 277.7)
-
Step 900
900
#383D6A
oklch(37.8% 0.077 277.3)
-
Step 950
950 (this color)
#12142D
oklch(20.5% 0.049 277.6)
#12142D 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) | #0A172E | 0.015 |
| Deuteranopia (no green cones) | #07152C | 0.017 |
| Tritanopia (no blue cones) | #08191E | 0.042 |
| Achromatopsia (no color) | #161616 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12142D
#12142D
oklch(20.5% 0.049 277.6)
- #1C1700
#1C1700
oklch(20.4% 0.042 98.7)
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 #12142D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.027
- Rich Navy #001219 ΔE 0.054
- Navy Blue #001146 ΔE 0.056
- Dark #1B2431 ΔE 0.059
- Oxford Blue #1B263B ΔE 0.066
- Dark Navy #000435 ΔE 0.066
- Midnight Purple #280137 ΔE 0.068
- Very Dark Purple #2A0134 ΔE 0.070
Use #12142D 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.