#001D30
Closest named color: Rich Black (#0D1B2A). oklch(22% 0.051 240.9), rgb(0, 29, 48).
Aa
White text reads best on this color (17.23:1).
About this color
#001D30 is a very dark, muted blue. In OKLCH its lightness is 22%, its chroma 0.051 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.018 away. White text reads best on it, at 17.23:1.
| Hue family | Blues |
| Lightness | very dark (22%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.21:1 |
| White text | 17.23:1 |
Values
| HEX | #001D30 |
| RGB | rgb(0, 29, 48) |
| HSL | hsl(204, 100%, 9%) |
| OKLCH | oklch(22% 0.051 240.9) |
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 #001D30 | 17.23:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #001D30 | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #001D30 text on white | 17.23:1 | AAA | Lc 103.9 | Preferred for body text |
| #001D30 text on black | 1.21:1 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200
#C6DDEE
oklch(88.6% 0.034 239.9)
-
Step 300
300
#9EC6E5
oklch(80.8% 0.061 241.8)
-
Step 400
400
#66A8D8
oklch(70.7% 0.098 241.6)
-
Step 500
500
#3492CD
oklch(63.2% 0.124 240.7)
-
Step 600
600
#007BB7
oklch(55.7% 0.129 240.7)
-
Step 700
700
#00679B
oklch(49.1% 0.115 241)
-
Step 800
800
#005480
oklch(42.6% 0.1 241.3)
-
Step 900
900
#0C4668
oklch(37.7% 0.081 240.8)
-
Step 950
950 (this color)
#001D30
oklch(22% 0.051 240.9)
#001D30 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) | #141D31 | 0.025 |
| Deuteranopia (no green cones) | #0C1930 | 0.018 |
| Tritanopia (no blue cones) | #002224 | 0.034 |
| Achromatopsia (no color) | #1B1B1B | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #001D30
#001D30
oklch(22% 0.051 240.9)
- #2B1400
#2B1400
oklch(22% 0.051 61.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes and gradients that use #001D30
These curated palettes and gradients contain exactly #001D30. Open one to see the full color scheme around it.
Gradients
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.018
- Dark #1B2431 ΔE 0.046
- Oxford Blue #1B263B ΔE 0.053
- Rich Navy #001219 ΔE 0.057
- Navy Blue #001146 ΔE 0.059
- Jet #212529 ΔE 0.059
- Dark Navy #000435 ΔE 0.080
- Almost Black #070D0D ΔE 0.081
Use #001D30 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.