#244580
Closest named color: Twilight Blue (#0A437A). oklch(39.9% 0.107 261), rgb(36, 69, 128).
Aa
White text reads best on this color (9.38:1).
About this color
#244580 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.107 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.023 away. White text reads best on it, at 9.38:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.23:1 |
| White text | 9.38:1 |
Values
| HEX | #244580 |
| RGB | rgb(36, 69, 128) |
| HSL | hsl(218, 56%, 32%) |
| OKLCH | oklch(39.9% 0.107 261) |
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 #244580 | 9.38:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #244580 | 2.23:1 | Fails | Lc 12.6 | Not readable |
| #244580 text on white | 9.38:1 | AAA | Lc 91.4 | Preferred for body text |
| #244580 text on black | 2.23:1 | Fails | Lc -11.0 | 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 900.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFA
oklch(93.5% 0.024 262.1)
-
Step 200
200
#C9DAF7
oklch(88.5% 0.044 261.2)
-
Step 300
300
#A4C2F5
oklch(81% 0.08 260.9)
-
Step 400
400
#72A0F0
oklch(70.7% 0.128 260.9)
-
Step 500
500
#4D86EB
oklch(63.1% 0.164 260.9)
-
Step 600
600
#316DD9
oklch(55.6% 0.177 261)
-
Step 700
700
#235ABD
oklch(49% 0.167 261.1)
-
Step 800
800
#1F4A99
oklch(42.7% 0.138 261.3)
-
Step 900
900 (this color)
#244580
oklch(39.9% 0.107 261)
-
Step 950
950
#122547
oklch(26.9% 0.068 261.1)
#244580 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) | #284B82 | 0.019 |
| Deuteranopia (no green cones) | #17427F | 0.016 |
| Tritanopia (no blue cones) | #00535C | 0.086 |
| Achromatopsia (no color) | #464646 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #244580
#244580
oklch(39.9% 0.107 261)
- #5E4200
#5E4200
oklch(40% 0.083 81.2)
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 #244580, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.023
- Cobalt #1E488F ΔE 0.025
- Light Navy #155084 ΔE 0.032
- Dusk Blue #26538D ΔE 0.044
- Deep Sea Blue #015482 ΔE 0.045
- Dark Slate Blue #483D8B ΔE 0.055
- Blueberry #464196 ΔE 0.060
- Marine Blue #01386A ΔE 0.061
Use #244580 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.