#012348
Closest named color: Oxford Blue (#1B263B). oklch(25.7% 0.079 253.7), rgb(1, 35, 72).
Aa
White text reads best on this color (15.72:1).
About this color
#012348 is a dark, moderately saturated blue. In OKLCH its lightness is 26%, its chroma 0.079 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.040 away. White text reads best on it, at 15.72:1.
| Hue family | Blues |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.33:1 |
| White text | 15.72:1 |
Values
| HEX | #012348 |
| RGB | rgb(1, 35, 72) |
| HSL | hsl(211, 97%, 14%) |
| OKLCH | oklch(25.7% 0.079 253.7) |
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 #012348 | 15.72:1 | AAA | Lc -105.0 | Preferred for body text |
| Black text on #012348 | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #012348 text on white | 15.72:1 | AAA | Lc 102.3 | Preferred for body text |
| #012348 text on black | 1.33:1 | 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
#C2DCFC
oklch(88.6% 0.052 253.7)
-
Step 300
300
#96C4FC
oklch(80.8% 0.094 253.7)
-
Step 400
400
#58A3FB
oklch(70.7% 0.15 253.8)
-
Step 500
500
#1489F9
oklch(63.2% 0.192 253.7)
-
Step 600
600
#0072D6
oklch(55.6% 0.176 253.8)
-
Step 700
700
#0060B5
oklch(49.2% 0.155 253.6)
-
Step 800
800
#004E96
oklch(42.7% 0.135 253.8)
-
Step 900
900
#00417E
oklch(37.7% 0.118 253.6)
-
Step 950
950 (this color)
#012348
oklch(25.7% 0.079 253.7)
#012348 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) | #0E2649 | 0.017 |
| Deuteranopia (no green cones) | #002047 | 0.010 |
| Tritanopia (no blue cones) | #002C32 | 0.058 |
| Achromatopsia (no color) | #232323 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #012348
#012348
oklch(25.7% 0.079 253.7)
- #331E00
#331E00
oklch(25.6% 0.055 72.3)
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 #012348, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.040
- Dark #1B2431 ΔE 0.051
- Marine #042E60 ΔE 0.054
- Navy Blue #001146 ΔE 0.054
- Rich Black #0D1B2A ΔE 0.059
- Space Cadet #2B2D42 ΔE 0.068
- Jet #212529 ΔE 0.070
- Prussian Blue #1D3557 ΔE 0.072
Use #012348 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.