#002043
Closest named color: Oxford Blue (#1B263B). oklch(24.4% 0.076 253.3), rgb(0, 32, 67).
Aa
White text reads best on this color (16.30:1).
About this color
#002043 is a very dark, moderately saturated blue. In OKLCH its lightness is 24%, its chroma 0.076 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.043 away. White text reads best on it, at 16.30:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.28:1 |
| White text | 16.30:1 |
Values
| HEX | #002043 |
| RGB | rgb(0, 32, 67) |
| HSL | hsl(211, 100%, 13%) |
| OKLCH | oklch(24.4% 0.076 253.3) |
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 #002043 | 16.30:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #002043 | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #002043 text on white | 16.30:1 | AAA | Lc 102.9 | Preferred for body text |
| #002043 text on black | 1.28:1 | 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
#DEEBFB
oklch(93.5% 0.026 253.6)
-
Step 200
200
#C3DCFA
oklch(88.6% 0.049 253.1)
-
Step 300
300
#97C4FA
oklch(80.8% 0.091 253.4)
-
Step 400
400
#5AA4F8
oklch(70.8% 0.144 253.1)
-
Step 500
500
#1D8AF4
oklch(63.2% 0.183 253.1)
-
Step 600
600
#0073D4
oklch(55.6% 0.172 253.1)
-
Step 700
700
#0060B4
oklch(49.1% 0.153 253.4)
-
Step 800
800
#004E95
oklch(42.6% 0.134 253.6)
-
Step 900
900
#00417D
oklch(37.6% 0.117 253.3)
-
Step 950
950 (this color)
#002043
oklch(24.4% 0.076 253.3)
#002043 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) | #0C2344 | 0.017 |
| Deuteranopia (no green cones) | #001D42 | 0.010 |
| Tritanopia (no blue cones) | #00292E | 0.057 |
| Achromatopsia (no color) | #202020 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #002043
#002043
oklch(24.4% 0.076 253.3)
- #2F1C00
#2F1C00
oklch(24.5% 0.052 73.9)
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 #002043, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.043
- Navy Blue #001146 ΔE 0.045
- Rich Black #0D1B2A ΔE 0.048
- Dark #1B2431 ΔE 0.050
- Marine #042E60 ΔE 0.067
- Jet #212529 ΔE 0.069
- Dark Indigo #1F0954 ΔE 0.071
- Night Blue #040348 ΔE 0.073
Use #002043 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.