#011C3D
Closest named color: Navy Blue (#001146). oklch(22.9% 0.072 254.7), rgb(1, 28, 61).
Aa
White text reads best on this color (17.00:1).
About this color
#011C3D is a very dark, moderately saturated blue. In OKLCH its lightness is 23%, its chroma 0.072 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.037 away. White text reads best on it, at 17.00:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.23:1 |
| White text | 17.00:1 |
Values
| HEX | #011C3D |
| RGB | rgb(1, 28, 61) |
| HSL | hsl(213, 97%, 12%) |
| OKLCH | oklch(22.9% 0.072 254.7) |
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 #011C3D | 17.00:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #011C3D | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #011C3D text on white | 17.00:1 | AAA | Lc 103.6 | Preferred for body text |
| #011C3D 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DFEBFB
oklch(93.6% 0.025 255.6)
-
Step 200
200
#C5DBF9
oklch(88.5% 0.048 256.2)
-
Step 300
300
#9BC4F7
oklch(80.9% 0.085 254.2)
-
Step 400
400
#62A3F3
oklch(70.7% 0.136 254.5)
-
Step 500
500
#3089EF
oklch(63% 0.174 254.7)
-
Step 600
600
#0071D9
oklch(55.6% 0.181 254.6)
-
Step 700
700
#005FB8
oklch(49.1% 0.16 254.6)
-
Step 800
800
#004D98
oklch(42.6% 0.139 254.8)
-
Step 900
900
#0A417C
oklch(37.8% 0.114 254.7)
-
Step 950
950 (this color)
#011C3D
oklch(22.9% 0.072 254.7)
#011C3D 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) | #091F3E | 0.015 |
| Deuteranopia (no green cones) | #001A3C | 0.007 |
| Tritanopia (no blue cones) | #002429 | 0.054 |
| Achromatopsia (no color) | #1C1C1C | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #011C3D
#011C3D
oklch(22.9% 0.072 254.7)
- #2A1900
#2A1900
oklch(23% 0.049 75)
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 #011C3D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.037
- Rich Black #0D1B2A ΔE 0.038
- Oxford Blue #1B263B ΔE 0.051
- Dark #1B2431 ΔE 0.053
- Night Blue #040348 ΔE 0.065
- Jet #212529 ΔE 0.071
- Dark Indigo #1F0954 ΔE 0.072
- Dark Navy #000435 ΔE 0.074
Use #011C3D 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.