#151A32
Closest named color: Rich Black (#0D1B2A). oklch(22.7% 0.047 273.2), rgb(21, 26, 50).
Aa
White text reads best on this color (17.13:1).
About this color
#151A32 is a very dark, muted blue. In OKLCH its lightness is 23%, its chroma 0.047 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.021 away. White text reads best on it, at 17.13:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.22:1 |
| White text | 17.13:1 |
Values
| HEX | #151A32 |
| RGB | rgb(21, 26, 50) |
| HSL | hsl(230, 41%, 14%) |
| OKLCH | oklch(22.7% 0.047 273.2) |
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 #151A32 | 17.13:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #151A32 | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #151A32 text on white | 17.13:1 | AAA | Lc 104.0 | Preferred for body text |
| #151A32 text on black | 1.22:1 | 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
#E6E9F5
oklch(93.5% 0.016 274.8)
-
Step 200
200
#D2D8EE
oklch(88.4% 0.031 273.6)
-
Step 300
300
#B4BFE6
oklch(80.9% 0.056 272.7)
-
Step 400
400
#8E9DD9
oklch(70.7% 0.09 273.1)
-
Step 500
500
#7384CE
oklch(63.1% 0.113 272.9)
-
Step 600
600
#5C6CBB
oklch(55.5% 0.124 273.1)
-
Step 700
700
#4C5AA2
oklch(49.2% 0.116 273.1)
-
Step 800
800
#3E4A83
oklch(42.7% 0.095 272.8)
-
Step 900
900
#353E69
oklch(37.7% 0.074 273.4)
-
Step 950
950 (this color)
#151A32
oklch(22.7% 0.047 273.2)
#151A32 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) | #111D33 | 0.011 |
| Deuteranopia (no green cones) | #0E1A31 | 0.011 |
| Tritanopia (no blue cones) | #0A1F23 | 0.042 |
| Achromatopsia (no color) | #1C1C1C | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #151A32
#151A32
oklch(22.7% 0.047 273.2)
- #231B00
#231B00
oklch(22.5% 0.046 93.6)
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 #151A32, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.021
- Dark #1B2431 ΔE 0.038
- Oxford Blue #1B263B ΔE 0.044
- Jet #212529 ΔE 0.053
- Navy Blue #001146 ΔE 0.059
- Rich Navy #001219 ΔE 0.068
- Midnight Purple #280137 ΔE 0.074
- Very Dark Purple #2A0134 ΔE 0.076
Use #151A32 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.