#282A51
Closest named color: Space Cadet (#2B2D42). oklch(30.4% 0.07 279.2), rgb(40, 42, 81).
Aa
White text reads best on this color (13.63:1).
About this color
#282A51 is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.070 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.032 away. White text reads best on it, at 13.63:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.54:1 |
| White text | 13.63:1 |
Values
| HEX | #282A51 |
| RGB | rgb(40, 42, 81) |
| HSL | hsl(237, 34%, 24%) |
| OKLCH | oklch(30.4% 0.07 279.2) |
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 #282A51 | 13.63:1 | AAA | Lc -103.2 | Preferred for body text |
| Black text on #282A51 | 1.54:1 | Fails | Lc 0.0 | Not readable |
| #282A51 text on white | 13.63:1 | AAA | Lc 100.1 | Preferred for body text |
| #282A51 text on black | 1.54:1 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E9FA
oklch(93.7% 0.023 277.9)
-
Step 200
200
#D2D7F8
oklch(88.6% 0.046 278.6)
-
Step 300
300
#B5BCF6
oklch(81% 0.082 279)
-
Step 400
400
#9097F1
oklch(70.8% 0.131 279.1)
-
Step 500
500
#767AEC
oklch(63.1% 0.168 278.9)
-
Step 600
600
#6160DA
oklch(55.6% 0.182 279.1)
-
Step 700
700
#514EBD
oklch(49.1% 0.169 279.3)
-
Step 800
800
#424199
oklch(42.8% 0.14 279.2)
-
Step 900
900
#37387A
oklch(37.7% 0.11 279.1)
-
Step 950
950 (this color)
#282A51
oklch(30.4% 0.07 279.2)
#282A51 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) | #1B2F52 | 0.022 |
| Deuteranopia (no green cones) | #182C50 | 0.023 |
| Tritanopia (no blue cones) | #1A3239 | 0.061 |
| Achromatopsia (no color) | #2E2E2E | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282A51
#282A51
oklch(30.4% 0.07 279.2)
- #372F00
#372F00
oklch(30.5% 0.063 99)
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 #282A51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.032
- Prussian Blue #1D3557 ΔE 0.035
- Gunmetal #293241 ΔE 0.044
- Marine #042E60 ΔE 0.045
- Oxford Blue #1B263B ΔE 0.047
- Dark Blue Grey #1F3B4D ΔE 0.057
- Marine Blue #01386A ΔE 0.061
- Midnight Green #073B4C ΔE 0.063
Use #282A51 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.