#13152A
Closest named color: Rich Black (#0D1B2A). oklch(20.6% 0.042 277.9), rgb(19, 21, 42).
Aa
White text reads best on this color (17.97:1).
About this color
#13152A is a very dark, muted blue. In OKLCH its lightness is 21%, its chroma 0.042 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.022 away. White text reads best on it, at 17.97:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.16:1 |
| White text | 17.97:1 |
Values
| HEX | #13152A |
| RGB | rgb(19, 21, 42) |
| HSL | hsl(235, 38%, 12%) |
| OKLCH | oklch(20.6% 0.042 277.9) |
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 #13152A | 17.97:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #13152A | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #13152A text on white | 17.97:1 | AAA | Lc 104.7 | Preferred for body text |
| #13152A 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F4
oklch(93.6% 0.015 277.8)
-
Step 200
200
#D4D8EC
oklch(88.5% 0.028 276.8)
-
Step 300
300
#B9BEE1
oklch(80.9% 0.05 278.8)
-
Step 400
400
#959CD2
oklch(70.7% 0.079 278.4)
-
Step 500
500
#7B83C6
oklch(63.1% 0.101 277.9)
-
Step 600
600
#656CB2
oklch(55.7% 0.108 277.9)
-
Step 700
700
#545A9A
oklch(49.2% 0.102 277.9)
-
Step 800
800
#44497C
oklch(42.5% 0.084 277.9)
-
Step 900
900
#393E64
oklch(37.7% 0.065 277.1)
-
Step 950
950 (this color)
#13152A
oklch(20.6% 0.042 277.9)
#13152A 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) | #0D182B | 0.013 |
| Deuteranopia (no green cones) | #0C162A | 0.011 |
| Tritanopia (no blue cones) | #0B191D | 0.036 |
| Achromatopsia (no color) | #171717 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #13152A
#13152A
oklch(20.6% 0.042 277.9)
- #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 #13152A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.022
- Rich Navy #001219 ΔE 0.051
- Dark #1B2431 ΔE 0.055
- Navy Blue #001146 ΔE 0.063
- Oxford Blue #1B263B ΔE 0.064
- Jet #212529 ΔE 0.066
- Almost Black #070D0D ΔE 0.068
- Midnight Purple #280137 ΔE 0.072
Use #13152A 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.