#012343
Closest named color: Oxford Blue (#1B263B). oklch(25.3% 0.072 250.8), rgb(1, 35, 67).
Aa
White text reads best on this color (15.87:1).
About this color
#012343 is a dark, moderately saturated blue. In OKLCH its lightness is 25%, its chroma 0.072 and its hue 251°. 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 15.87:1.
| Hue family | Blues |
| Lightness | dark (25%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.32:1 |
| White text | 15.87:1 |
Values
| HEX | #012343 |
| RGB | rgb(1, 35, 67) |
| HSL | hsl(209, 97%, 13%) |
| OKLCH | oklch(25.3% 0.072 250.8) |
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 #012343 | 15.87:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #012343 | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #012343 text on white | 15.87:1 | AAA | Lc 102.5 | Preferred for body text |
| #012343 text on black | 1.32:1 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEEBFA
oklch(93.5% 0.025 251.9)
-
Step 200
200
#C3DCF8
oklch(88.5% 0.047 251.3)
-
Step 300
300
#98C5F6
oklch(80.9% 0.085 251)
-
Step 400
400
#5AA5F2
oklch(70.7% 0.136 250.9)
-
Step 500
500
#1A8CED
oklch(63.1% 0.173 250.8)
-
Step 600
600
#0075CD
oklch(55.6% 0.161 250.9)
-
Step 700
700
#0062AD
oklch(49.1% 0.142 250.8)
-
Step 800
800
#00508F
oklch(42.6% 0.123 250.8)
-
Step 900
900
#004379
oklch(37.8% 0.109 250.7)
-
Step 950
950 (this color)
#012343
oklch(25.3% 0.072 250.8)
#012343 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) | #122544 | 0.019 |
| Deuteranopia (no green cones) | #061F42 | 0.013 |
| Tritanopia (no blue cones) | #002B2F | 0.053 |
| Achromatopsia (no color) | #222222 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #012343
#012343
oklch(25.3% 0.072 250.8)
- #321D00
#321D00
oklch(25.2% 0.054 71.6)
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 #012343, 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 0.050
- Navy Blue #001146 ΔE 0.055
- Marine #042E60 ΔE 0.061
- Jet #212529 ΔE 0.063
- Space Cadet #2B2D42 ΔE 0.067
- Prussian Blue #1D3557 ΔE 0.075
Use #012343 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.