#13152E
Closest named color: Rich Black (#0D1B2A). oklch(20.9% 0.049 277.8), rgb(19, 21, 46).
Aa
White text reads best on this color (17.88:1).
About this color
#13152E is a very dark, muted blue. In OKLCH its lightness is 21%, 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 0.025 away. White text reads best on it, at 17.88:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.17:1 |
| White text | 17.88:1 |
Values
| HEX | #13152E |
| RGB | rgb(19, 21, 46) |
| HSL | hsl(236, 42%, 13%) |
| OKLCH | oklch(20.9% 0.049 277.8) |
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 #13152E | 17.88:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #13152E | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #13152E text on white | 17.88:1 | AAA | Lc 104.6 | Preferred for body text |
| #13152E text on black | 1.17:1 | 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
#D4D8EF
oklch(88.6% 0.032 277.9)
-
Step 300
300
#B7BEE7
oklch(81% 0.058 277.4)
-
Step 400
400
#929BDA
oklch(70.6% 0.093 277.5)
-
Step 500
500
#7981D0
oklch(63.1% 0.119 278)
-
Step 600
600
#6269BD
oklch(55.5% 0.129 277.7)
-
Step 700
700
#5257A3
oklch(49% 0.12 278.1)
-
Step 800
800
#434884
oklch(42.7% 0.099 277.8)
-
Step 900
900
#383D6A
oklch(37.8% 0.077 277.3)
-
Step 950
950 (this color)
#13152E
oklch(20.9% 0.049 277.8)
#13152E 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) | #0B182F | 0.015 |
| Deuteranopia (no green cones) | #09162D | 0.016 |
| Tritanopia (no blue cones) | #091A1F | 0.042 |
| Achromatopsia (no color) | #171717 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #13152E
#13152E
oklch(20.9% 0.049 277.8)
- #1D1800
#1D1800
oklch(20.9% 0.043 99)
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 #13152E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.025
- Dark #1B2431 ΔE 0.055
- Navy Blue #001146 ΔE 0.056
- Rich Navy #001219 ΔE 0.057
- Oxford Blue #1B263B ΔE 0.062
- Jet #212529 ΔE 0.067
- Midnight Purple #280137 ΔE 0.068
- Dark Navy #000435 ΔE 0.069
Use #13152E 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.