#001E42
Closest named color: Navy Blue (#001146). oklch(23.8% 0.077 254.6), rgb(0, 30, 66).
Aa
White text reads best on this color (16.60:1).
About this color
#001E42 is a very dark, moderately saturated blue. In OKLCH its lightness is 24%, its chroma 0.077 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.039 away. White text reads best on it, at 16.60:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.26:1 |
| White text | 16.60:1 |
Values
| HEX | #001E42 |
| RGB | rgb(0, 30, 66) |
| HSL | hsl(213, 100%, 13%) |
| OKLCH | oklch(23.8% 0.077 254.6) |
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 #001E42 | 16.60:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #001E42 | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #001E42 text on white | 16.60:1 | AAA | Lc 103.2 | Preferred for body text |
| #001E42 text on black | 1.26:1 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DEEBFC
oklch(93.5% 0.027 255.1)
-
Step 200
200
#C3DCFB
oklch(88.6% 0.051 253.9)
-
Step 300
300
#98C4FB
oklch(80.9% 0.091 254.3)
-
Step 400
400
#5CA3FA
oklch(70.8% 0.147 254.6)
-
Step 500
500
#2388F7
oklch(63% 0.188 254.8)
-
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
#004080
oklch(37.6% 0.123 254.7)
-
Step 950
950 (this color)
#001E42
oklch(23.8% 0.077 254.6)
#001E42 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) | #082243 | 0.017 |
| Deuteranopia (no green cones) | #001C41 | 0.007 |
| Tritanopia (no blue cones) | #00272C | 0.059 |
| Achromatopsia (no color) | #1E1E1E | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #001E42
#001E42
oklch(23.8% 0.077 254.6)
- #2D1B00
#2D1B00
oklch(24% 0.051 74.8)
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 #001E42, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.039
- Rich Black #0D1B2A ΔE 0.047
- Oxford Blue #1B263B ΔE 0.048
- Dark #1B2431 ΔE 0.053
- Night Blue #040348 ΔE 0.067
- Dark Indigo #1F0954 ΔE 0.069
- Jet #212529 ΔE 0.072
- Marine #042E60 ΔE 0.072
Use #001E42 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.