#1F264F
Closest named color: Oxford Blue (#1B263B). oklch(28.6% 0.075 273.5), rgb(31, 38, 79).
Aa
White text reads best on this color (14.49:1).
About this color
#1F264F is a dark, moderately saturated blue. In OKLCH its lightness is 29%, its chroma 0.075 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.038 away. White text reads best on it, at 14.49:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.44:1 |
| White text | 14.49:1 |
Values
| HEX | #1F264F |
| RGB | rgb(31, 38, 79) |
| HSL | hsl(231, 44%, 22%) |
| OKLCH | oklch(28.6% 0.075 273.5) |
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 #1F264F | 14.49:1 | AAA | Lc -104.1 | Preferred for body text |
| Black text on #1F264F | 1.44:1 | Fails | Lc 0.0 | Not readable |
| #1F264F text on white | 14.49:1 | AAA | Lc 101.1 | Preferred for body text |
| #1F264F text on black | 1.44:1 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FC
oklch(93.6% 0.026 274.1)
-
Step 200
200
#CED8FB
oklch(88.6% 0.049 272.8)
-
Step 300
300
#AEBDFB
oklch(80.9% 0.089 273.7)
-
Step 400
400
#8598F9
oklch(70.7% 0.143 273.8)
-
Step 500
500
#697BF5
oklch(63% 0.182 273.7)
-
Step 600
600
#5361E4
oklch(55.6% 0.197 273.5)
-
Step 700
700
#444FC6
oklch(49.1% 0.183 273.5)
-
Step 800
800
#3742A0
oklch(42.7% 0.151 273.1)
-
Step 900
900
#2F397F
oklch(37.7% 0.118 273.3)
-
Step 950
950 (this color)
#1F264F
oklch(28.6% 0.075 273.5)
#1F264F 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) | #132B51 | 0.020 |
| Deuteranopia (no green cones) | #0D274E | 0.022 |
| Tritanopia (no blue cones) | #062F36 | 0.067 |
| Achromatopsia (no color) | #292929 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F264F
#1F264F
oklch(28.6% 0.075 273.5)
- #342900
#342900
oklch(28.5% 0.058 93.2)
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 #1F264F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.038
- Marine #042E60 ΔE 0.041
- Space Cadet #2B2D42 ΔE 0.042
- Prussian Blue #1D3557 ΔE 0.047
- Gunmetal #293241 ΔE 0.055
- Dark #1B2431 ΔE 0.056
- Marine Blue #01386A ΔE 0.068
- Midnight Blue #191970 ΔE 0.069
Use #1F264F 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.