#051637
Closest named color: Navy Blue (#001146). oklch(20.9% 0.069 261.2), rgb(5, 22, 55).
Aa
White text reads best on this color (17.85:1).
About this color
#051637 is a very dark, muted blue. In OKLCH its lightness is 21%, its chroma 0.069 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.033 away. White text reads best on it, at 17.85:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.17:1 |
| White text | 17.85:1 |
Values
| HEX | #051637 |
| RGB | rgb(5, 22, 55) |
| HSL | hsl(220, 83%, 12%) |
| OKLCH | oklch(20.9% 0.069 261.2) |
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 #051637 | 17.85:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #051637 | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #051637 text on white | 17.85:1 | AAA | Lc 104.4 | Preferred for body text |
| #051637 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFA
oklch(93.5% 0.024 262.1)
-
Step 200
200
#C9DAF8
oklch(88.5% 0.045 261.9)
-
Step 300
300
#A3C2F6
oklch(81% 0.081 260.6)
-
Step 400
400
#72A0F2
oklch(70.8% 0.131 261.3)
-
Step 500
500
#4D86ED
oklch(63.2% 0.166 261.2)
-
Step 600
600
#306CDB
oklch(55.5% 0.181 261.4)
-
Step 700
700
#235ABE
oklch(49.1% 0.168 261.2)
-
Step 800
800
#1E4A9A
oklch(42.7% 0.14 261.2)
-
Step 900
900
#1E3F7A
oklch(37.7% 0.108 261)
-
Step 950
950 (this color)
#051637
oklch(20.9% 0.069 261.2)
#051637 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) | #031A38 | 0.013 |
| Deuteranopia (no green cones) | #001536 | 0.009 |
| Tritanopia (no blue cones) | #001E23 | 0.054 |
| Achromatopsia (no color) | #171717 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #051637
#051637
oklch(20.9% 0.069 261.2)
- #221600
#221600
oklch(21% 0.043 82.5)
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 #051637, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.033
- Rich Black #0D1B2A ΔE 0.035
- Night Blue #040348 ΔE 0.055
- Dark Navy #000435 ΔE 0.056
- Rich Navy #001219 ΔE 0.063
- Dark #1B2431 ΔE 0.064
- Oxford Blue #1B263B ΔE 0.066
- Very Dark Blue #000133 ΔE 0.068
Use #051637 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.