#01244D
Closest named color: Oxford Blue (#1B263B). oklch(26.4% 0.085 255.1), rgb(1, 36, 77).
Aa
White text reads best on this color (15.43:1).
About this color
#01244D is a dark, moderately saturated blue. In OKLCH its lightness is 26%, its chroma 0.085 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.044 away. White text reads best on it, at 15.43:1.
| Hue family | Blues |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.36:1 |
| White text | 15.43:1 |
Values
| HEX | #01244D |
| RGB | rgb(1, 36, 77) |
| HSL | hsl(212, 97%, 15%) |
| OKLCH | oklch(26.4% 0.085 255.1) |
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 #01244D | 15.43:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #01244D | 1.36:1 | Fails | Lc 0.0 | Not readable |
| #01244D text on white | 15.43:1 | AAA | Lc 102.0 | Preferred for body text |
| #01244D text on black | 1.36:1 | 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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DDEBFE
oklch(93.5% 0.03 256)
-
Step 200
200
#C1DCFE
oklch(88.6% 0.055 254.3)
-
Step 300
300
#96C4FF
oklch(81% 0.097 254.9)
-
Step 400
400
#58A2FF
oklch(70.7% 0.156 255.2)
-
Step 500
500
#1387FF
oklch(63.1% 0.201 255.1)
-
Step 600
600
#0070DB
oklch(55.5% 0.184 255.3)
-
Step 700
700
#005EBA
oklch(49.1% 0.163 255.3)
-
Step 800
800
#004D9A
oklch(42.7% 0.142 255.2)
-
Step 900
900
#004081
oklch(37.7% 0.124 254.9)
-
Step 950
950 (this color)
#01244D
oklch(26.4% 0.085 255.1)
#01244D 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) | #0B284F | 0.017 |
| Deuteranopia (no green cones) | #00214C | 0.010 |
| Tritanopia (no blue cones) | #002E34 | 0.064 |
| Achromatopsia (no color) | #242424 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #01244D
#01244D
oklch(26.4% 0.085 255.1)
- #342000
#342000
oklch(26.3% 0.055 75.1)
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 #01244D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.044
- Marine #042E60 ΔE 0.045
- Navy Blue #001146 ΔE 0.058
- Dark #1B2431 ΔE 0.058
- Prussian Blue #1D3557 ΔE 0.066
- Space Cadet #2B2D42 ΔE 0.067
- Rich Black #0D1B2A ΔE 0.068
- Dark Indigo #1F0954 ΔE 0.070
Use #01244D 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.