#24304B
Closest named color: Space Cadet (#2B2D42). oklch(31.2% 0.051 265.3), rgb(36, 48, 75).
Aa
White text reads best on this color (13.12:1).
About this color
#24304B is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.051 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.019 away. White text reads best on it, at 13.12:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.59:1 |
| White text | 13.12:1 |
Values
| HEX | #24304B |
| RGB | rgb(36, 48, 75) |
| HSL | hsl(222, 35%, 22%) |
| OKLCH | oklch(31.2% 0.051 265.3) |
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 #24304B | 13.12:1 | AAA | Lc -102.6 | Preferred for body text |
| Black text on #24304B | 1.59:1 | Fails | Lc 0.0 | Not readable |
| #24304B text on white | 13.12:1 | AAA | Lc 99.4 | Preferred for body text |
| #24304B text on black | 1.59:1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CED9F0
oklch(88.4% 0.034 265.2)
-
Step 300
300
#AEC1E9
oklch(81% 0.06 265.1)
-
Step 400
400
#839FDE
oklch(70.6% 0.098 265.6)
-
Step 500
500
#6586D5
oklch(63% 0.125 265.8)
-
Step 600
600
#4C6FC2
oklch(55.6% 0.135 265.1)
-
Step 700
700
#3D5CA8
oklch(49.1% 0.127 265.3)
-
Step 800
800
#334C88
oklch(42.8% 0.104 265.2)
-
Step 900
900
#2C406D
oklch(37.8% 0.081 264.7)
-
Step 950
950 (this color)
#24304B
oklch(31.2% 0.051 265.3)
#24304B 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) | #26324C | 0.007 |
| Deuteranopia (no green cones) | #222F4A | 0.005 |
| Tritanopia (no blue cones) | #15363A | 0.046 |
| Achromatopsia (no color) | #303030 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #24304B
#24304B
oklch(31.2% 0.051 265.3)
- #3D2F0E
#3D2F0E
oklch(31.3% 0.052 85.7)
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 #24304B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.019
- Gunmetal #293241 ΔE 0.022
- Prussian Blue #1D3557 ΔE 0.024
- Dark Blue Grey #1F3B4D ΔE 0.036
- Midnight Green #073B4C ΔE 0.042
- Oxford Blue #1B263B ΔE 0.044
- Marine #042E60 ΔE 0.049
- Onyx #343A40 ΔE 0.051
Use #24304B 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.