#001938
Closest named color: Rich Black (#0D1B2A). oklch(21.5% 0.069 254.1), rgb(0, 25, 56).
Aa
White text reads best on this color (17.55:1).
About this color
#001938 is a very dark, muted blue. In OKLCH its lightness is 22%, its chroma 0.069 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.033 away. White text reads best on it, at 17.55:1.
| Hue family | Blues |
| Lightness | very dark (22%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.19:1 |
| White text | 17.55:1 |
Values
| HEX | #001938 |
| RGB | rgb(0, 25, 56) |
| HSL | hsl(213, 100%, 11%) |
| OKLCH | oklch(21.5% 0.069 254.1) |
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 #001938 | 17.55:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #001938 | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #001938 text on white | 17.55:1 | AAA | Lc 104.1 | Preferred for body text |
| #001938 text on black | 1.19:1 | 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
#DFEBFA
oklch(93.6% 0.024 254)
-
Step 200
200
#C5DBF7
oklch(88.4% 0.045 254.5)
-
Step 300
300
#9CC4F5
oklch(80.9% 0.082 253.8)
-
Step 400
400
#64A3F0
oklch(70.6% 0.131 254.3)
-
Step 500
500
#348AEB
oklch(63.1% 0.167 254.2)
-
Step 600
600
#0072D7
oklch(55.6% 0.177 254)
-
Step 700
700
#005FB6
oklch(49% 0.157 254.2)
-
Step 800
800
#004E97
oklch(42.8% 0.136 254.1)
-
Step 900
900
#0D4179
oklch(37.6% 0.109 254.3)
-
Step 950
950 (this color)
#001938
oklch(21.5% 0.069 254.1)
#001938 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) | #071C39 | 0.015 |
| Deuteranopia (no green cones) | #001737 | 0.007 |
| Tritanopia (no blue cones) | #002125 | 0.053 |
| Achromatopsia (no color) | #191919 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #001938
#001938
oklch(21.5% 0.069 254.1)
- #261600
#261600
oklch(21.6% 0.046 74.4)
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 #001938, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.033
- Navy Blue #001146 ΔE 0.036
- Dark #1B2431 ΔE 0.059
- Oxford Blue #1B263B ΔE 0.061
- Night Blue #040348 ΔE 0.061
- Dark Navy #000435 ΔE 0.063
- Rich Navy #001219 ΔE 0.065
- Very Dark Blue #000133 ΔE 0.075
Use #001938 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.