#24447C
Closest named color: Twilight Blue (#0A437A). oklch(39.3% 0.102 260.7), rgb(36, 68, 124).
Aa
White text reads best on this color (9.57:1).
About this color
#24447C is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.102 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.020 away. White text reads best on it, at 9.57:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.19:1 |
| White text | 9.57:1 |
Values
| HEX | #24447C |
| RGB | rgb(36, 68, 124) |
| HSL | hsl(218, 55%, 31%) |
| OKLCH | oklch(39.3% 0.102 260.7) |
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 #24447C | 9.57:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #24447C | 2.19:1 | Fails | Lc 12.0 | Not readable |
| #24447C text on white | 9.57:1 | AAA | Lc 91.9 | Preferred for body text |
| #24447C text on black | 2.19:1 | Fails | Lc -10.5 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#C9DAF6
oklch(88.4% 0.043 260.4)
-
Step 300
300
#A5C2F3
oklch(81% 0.077 260.8)
-
Step 400
400
#74A0ED
oklch(70.6% 0.123 261.1)
-
Step 500
500
#4F87E7
oklch(63.2% 0.157 260.5)
-
Step 600
600
#336ED5
oklch(55.6% 0.17 260.7)
-
Step 700
700
#265BB9
oklch(49.1% 0.159 260.9)
-
Step 800
800
#214B95
oklch(42.6% 0.131 260.8)
-
Step 900
900 (this color)
#24447C
oklch(39.3% 0.102 260.7)
-
Step 950
950
#132646
oklch(27.1% 0.065 260.2)
#24447C 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) | #29497E | 0.017 |
| Deuteranopia (no green cones) | #1A417B | 0.014 |
| Tritanopia (no blue cones) | #00515A | 0.082 |
| Achromatopsia (no color) | #454545 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #24447C
#24447C
oklch(39.3% 0.102 260.7)
- #5C4000
#5C4000
oklch(39.3% 0.081 80.5)
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 #24447C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.020
- Cobalt #1E488F ΔE 0.032
- Light Navy #155084 ΔE 0.035
- Deep Sea Blue #015482 ΔE 0.047
- Dusk Blue #26538D ΔE 0.049
- Marine Blue #01386A ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.058
- Dark Grey Blue #29465B ΔE 0.059
Use #24447C 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.