#051534
Closest named color: Rich Black (#0D1B2A). oklch(20.4% 0.065 261.2), rgb(5, 21, 52).
Aa
White text reads best on this color (18.05:1).
About this color
#051534 is a very dark, muted blue. In OKLCH its lightness is 20%, its chroma 0.065 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.034 away. White text reads best on it, at 18.05:1.
| Hue family | Blues |
| Lightness | very dark (20%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.16:1 |
| White text | 18.05:1 |
Values
| HEX | #051534 |
| RGB | rgb(5, 21, 52) |
| HSL | hsl(220, 82%, 11%) |
| OKLCH | oklch(20.4% 0.065 261.2) |
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 #051534 | 18.05:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #051534 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #051534 text on white | 18.05:1 | AAA | Lc 104.6 | Preferred for body text |
| #051534 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#C9DAF6
oklch(88.4% 0.043 260.4)
-
Step 300
300
#A5C2F3
oklch(81% 0.077 260.8)
-
Step 400
400
#74A0EE
oklch(70.7% 0.125 261.3)
-
Step 500
500
#5086E8
oklch(63.1% 0.159 261.3)
-
Step 600
600
#346ED6
oklch(55.7% 0.171 261)
-
Step 700
700
#275BBA
oklch(49.2% 0.16 261.2)
-
Step 800
800
#214B96
oklch(42.7% 0.132 260.9)
-
Step 900
900
#203F78
oklch(37.7% 0.104 261.4)
-
Step 950
950 (this color)
#051534
oklch(20.4% 0.065 261.2)
#051534 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) | #041935 | 0.013 |
| Deuteranopia (no green cones) | #001433 | 0.009 |
| Tritanopia (no blue cones) | #001C22 | 0.049 |
| Achromatopsia (no color) | #161616 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #051534
#051534
oklch(20.4% 0.065 261.2)
- #201400
#201400
oklch(20.2% 0.042 81)
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 #051534, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.034
- Navy Blue #001146 ΔE 0.038
- Dark Navy #000435 ΔE 0.053
- Night Blue #040348 ΔE 0.057
- Rich Navy #001219 ΔE 0.057
- Very Dark Blue #000133 ΔE 0.065
- Dark Navy Blue #00022E ΔE 0.066
- Dark #1B2431 ΔE 0.066
Use #051534 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.