#072143
Closest named color: Oxford Blue (#1B263B). oklch(25% 0.072 256.6), rgb(7, 33, 67).
Aa
White text reads best on this color (16.05:1).
About this color
#072143 is a dark, moderately saturated blue. In OKLCH its lightness is 25%, its chroma 0.072 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.035 away. White text reads best on it, at 16.05:1.
| Hue family | Blues |
| Lightness | dark (25%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.30:1 |
| White text | 16.05:1 |
Values
| HEX | #072143 |
| RGB | rgb(7, 33, 67) |
| HSL | hsl(214, 81%, 15%) |
| OKLCH | oklch(25% 0.072 256.6) |
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 #072143 | 16.05:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #072143 | 1.30:1 | Fails | Lc 0.0 | Not readable |
| #072143 text on white | 16.05:1 | AAA | Lc 102.8 | Preferred for body text |
| #072143 text on black | 1.30:1 | 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
#E0EBFB
oklch(93.7% 0.025 257.6)
-
Step 200
200
#C6DBF9
oklch(88.5% 0.047 257.3)
-
Step 300
300
#9DC3F7
oklch(80.8% 0.085 256.3)
-
Step 400
400
#66A2F4
oklch(70.7% 0.136 256.5)
-
Step 500
500
#3988EF
oklch(63.1% 0.173 256.5)
-
Step 600
600
#0B6FDE
oklch(55.6% 0.188 256.5)
-
Step 700
700
#005DBF
oklch(49.2% 0.171 256.5)
-
Step 800
800
#054C9C
oklch(42.7% 0.145 256.5)
-
Step 900
900
#11407C
oklch(37.7% 0.113 256.7)
-
Step 950
950 (this color)
#072143
oklch(25% 0.072 256.6)
#072143 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) | #0F2444 | 0.014 |
| Deuteranopia (no green cones) | #041F42 | 0.008 |
| Tritanopia (no blue cones) | #00292E | 0.055 |
| Achromatopsia (no color) | #212121 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #072143
#072143
oklch(25% 0.072 256.6)
- #301E00
#301E00
oklch(25.2% 0.053 76.9)
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 #072143, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.035
- Dark #1B2431 ΔE 0.044
- Rich Black #0D1B2A ΔE 0.049
- Navy Blue #001146 ΔE 0.051
- Marine #042E60 ΔE 0.063
- Jet #212529 ΔE 0.063
- Space Cadet #2B2D42 ΔE 0.068
- Dark Indigo #1F0954 ΔE 0.070
Use #072143 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.