#051A42
Closest named color: Navy Blue (#001146). oklch(23% 0.081 261.2), rgb(5, 26, 66).
Aa
White text reads best on this color (17.03:1).
About this color
#051A42 is a very dark, moderately saturated blue. In OKLCH its lightness is 23%, its chroma 0.081 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.029 away. White text reads best on it, at 17.03:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.23:1 |
| White text | 17.03:1 |
Values
| HEX | #051A42 |
| RGB | rgb(5, 26, 66) |
| HSL | hsl(219, 86%, 14%) |
| OKLCH | oklch(23% 0.081 261.2) |
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 #051A42 | 17.03:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #051A42 | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #051A42 text on white | 17.03:1 | AAA | Lc 103.6 | Preferred for body text |
| #051A42 text on black | 1.23:1 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EBFD
oklch(93.7% 0.027 260.3)
-
Step 200
200
#C6DAFD
oklch(88.5% 0.053 261.7)
-
Step 300
300
#9EC1FF
oklch(80.8% 0.096 261.6)
-
Step 400
400
#699FFF
oklch(70.8% 0.152 261.1)
-
Step 500
500
#3F83FE
oklch(63.2% 0.196 261.1)
-
Step 600
600
#1E68ED
oklch(55.6% 0.213 261.2)
-
Step 700
700
#1055CE
oklch(49% 0.198 261.2)
-
Step 800
800
#1147A7
oklch(42.8% 0.164 261.1)
-
Step 900
900
#163D84
oklch(37.8% 0.128 261.2)
-
Step 950
950 (this color)
#051A42
oklch(23% 0.081 261.2)
#051A42 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) | #001F43 | 0.015 |
| Deuteranopia (no green cones) | #001941 | 0.008 |
| Tritanopia (no blue cones) | #00242B | 0.062 |
| Achromatopsia (no color) | #1C1C1C | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #051A42
#051A42
oklch(23% 0.081 261.2)
- #281A00
#281A00
oklch(23% 0.047 81.2)
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 #051A42, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.029
- Rich Black #0D1B2A ΔE 0.048
- Oxford Blue #1B263B ΔE 0.055
- Night Blue #040348 ΔE 0.056
- Dark Indigo #1F0954 ΔE 0.060
- Dark #1B2431 ΔE 0.060
- Darkblue #030764 ΔE 0.071
- Dark Navy #000435 ΔE 0.072
Use #051A42 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.