#051131
Closest named color: Navy Blue (#001146). oklch(19% 0.066 264.3), rgb(5, 17, 49).
Aa
White text reads best on this color (18.56:1).
About this color
#051131 is a very dark, muted blue. In OKLCH its lightness is 19%, its chroma 0.066 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.041 away. White text reads best on it, at 18.56:1.
| Hue family | Blues |
| Lightness | very dark (19%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.13:1 |
| White text | 18.56:1 |
Values
| HEX | #051131 |
| RGB | rgb(5, 17, 49) |
| HSL | hsl(224, 81%, 11%) |
| OKLCH | oklch(19% 0.066 264.3) |
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 #051131 | 18.56:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #051131 | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #051131 text on white | 18.56:1 | AAA | Lc 105.0 | Preferred for body text |
| #051131 text on black | 1.13:1 | 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
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CBD9F7
oklch(88.4% 0.044 265.6)
-
Step 300
300
#A7C1F4
oklch(80.9% 0.078 263.6)
-
Step 400
400
#799FEF
oklch(70.8% 0.125 264.1)
-
Step 500
500
#5784EA
oklch(63.1% 0.161 264.4)
-
Step 600
600
#3D6BD8
oklch(55.6% 0.175 264.2)
-
Step 700
700
#3059BB
oklch(49.1% 0.162 264.2)
-
Step 800
800
#284998
oklch(42.7% 0.135 264.3)
-
Step 900
900
#243E79
oklch(37.7% 0.106 264.1)
-
Step 950
950 (this color)
#051131
oklch(19% 0.066 264.3)
#051131 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) | #001532 | 0.014 |
| Deuteranopia (no green cones) | #001130 | 0.009 |
| Tritanopia (no blue cones) | #00191E | 0.053 |
| Achromatopsia (no color) | #131313 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #051131
#051131
oklch(19% 0.066 264.3)
- #1C1200
#1C1200
oklch(19% 0.039 84.1)
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 #051131, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.041
- Dark Navy #000435 ΔE 0.042
- Rich Black #0D1B2A ΔE 0.043
- Rich Navy #001219 ΔE 0.052
- Dark Navy Blue #00022E ΔE 0.053
- Very Dark Blue #000133 ΔE 0.053
- Midnight #03012D ΔE 0.053
- Night Blue #040348 ΔE 0.054
Use #051131 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.