#01263A
Closest named color: Oxford Blue (#1B263B). oklch(25.5% 0.055 237.8), rgb(1, 38, 58).
Aa
White text reads best on this color (15.67:1).
About this color
#01263A is a dark, muted blue. In OKLCH its lightness is 26%, its chroma 0.055 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.028 away. White text reads best on it, at 15.67:1.
| Hue family | Blues |
| Lightness | dark (26%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.33:1 |
| White text | 15.67:1 |
Values
| HEX | #01263A |
| RGB | rgb(1, 38, 58) |
| HSL | hsl(201, 97%, 12%) |
| OKLCH | oklch(25.5% 0.055 237.8) |
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 #01263A | 15.67:1 | AAA | Lc -105.0 | Preferred for body text |
| Black text on #01263A | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #01263A text on white | 15.67:1 | AAA | Lc 102.3 | Preferred for body text |
| #01263A 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
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DFECF5
oklch(93.6% 0.018 237.8)
-
Step 200
200
#C4DDEF
oklch(88.5% 0.036 239.2)
-
Step 300
300
#99C7E6
oklch(80.8% 0.065 238.1)
-
Step 400
400
#5CAADA
oklch(70.7% 0.104 237.7)
-
Step 500
500
#1893D0
oklch(63% 0.134 238)
-
Step 600
600
#007CB2
oklch(55.6% 0.123 237.7)
-
Step 700
700
#006896
oklch(49.1% 0.108 237.6)
-
Step 800
800
#00557C
oklch(42.7% 0.094 237.9)
-
Step 900
900
#004768
oklch(37.7% 0.083 237.5)
-
Step 950
950 (this color)
#01263A
oklch(25.5% 0.055 237.8)
#01263A 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) | #1C263B | 0.030 |
| Deuteranopia (no green cones) | #14213A | 0.024 |
| Tritanopia (no blue cones) | #002B2D | 0.035 |
| Achromatopsia (no color) | #232323 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #01263A
#01263A
oklch(25.5% 0.055 237.8)
- #361B04
#361B04
oklch(25.5% 0.055 57.7)
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 #01263A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.028
- Dark #1B2431 ΔE 0.031
- Rich Black #0D1B2A ΔE 0.043
- Jet #212529 ΔE 0.046
- Space Cadet #2B2D42 ΔE 0.062
- Gunmetal #293241 ΔE 0.067
- Marine #042E60 ΔE 0.072
- Navy Blue #001146 ΔE 0.072
Use #01263A 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.