#011138
Closest named color: Navy Blue (#001146). oklch(19.5% 0.08 261.4), rgb(1, 17, 56).
Aa
White text reads best on this color (18.44:1).
About this color
#011138 is a very dark, moderately saturated blue. In OKLCH its lightness is 19%, its chroma 0.080 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.027 away. White text reads best on it, at 18.44:1.
| Hue family | Blues |
| Lightness | very dark (19%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.13:1 |
| White text | 18.44:1 |
Values
| HEX | #011138 |
| RGB | rgb(1, 17, 56) |
| HSL | hsl(223, 96%, 11%) |
| OKLCH | oklch(19.5% 0.08 261.4) |
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 #011138 | 18.44:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #011138 | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #011138 text on white | 18.44:1 | AAA | Lc 104.7 | Preferred for body text |
| #011138 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EAFD
oklch(93.5% 0.028 263.4)
-
Step 200
200
#C6DAFD
oklch(88.5% 0.053 261.7)
-
Step 300
300
#9EC1FE
oklch(80.8% 0.095 261.3)
-
Step 400
400
#6A9FFE
oklch(70.8% 0.151 261.3)
-
Step 500
500
#4183FD
oklch(63.2% 0.194 261.4)
-
Step 600
600
#2168EC
oklch(55.6% 0.211 261.5)
-
Step 700
700
#1456CD
oklch(49.2% 0.195 261.3)
-
Step 800
800
#1347A6
oklch(42.7% 0.163 261.3)
-
Step 900
900
#173D83
oklch(37.7% 0.126 261.3)
-
Step 950
950 (this color)
#011138
oklch(19.5% 0.08 261.4)
#011138 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) | #001739 | 0.019 |
| Deuteranopia (no green cones) | #001137 | 0.003 |
| Tritanopia (no blue cones) | #001B22 | 0.061 |
| Achromatopsia (no color) | #141414 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #011138
#011138
oklch(19.5% 0.08 261.4)
- #1E1300
#1E1300
oklch(19.6% 0.04 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 #011138, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.027
- Dark Navy #000435 ΔE 0.038
- Night Blue #040348 ΔE 0.041
- Very Dark Blue #000133 ΔE 0.050
- Rich Black #0D1B2A ΔE 0.051
- Dark Navy Blue #00022E ΔE 0.053
- Midnight #03012D ΔE 0.055
- Rich Navy #001219 ΔE 0.064
Use #011138 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.