#282A43
Closest named color: Space Cadet (#2B2D42). oklch(29.5% 0.045 279.7), rgb(40, 42, 67).
Aa
White text reads best on this color (13.97:1).
About this color
#282A43 is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.045 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.012 away. White text reads best on it, at 13.97:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.50:1 |
| White text | 13.97:1 |
Values
| HEX | #282A43 |
| RGB | rgb(40, 42, 67) |
| HSL | hsl(236, 25%, 21%) |
| OKLCH | oklch(29.5% 0.045 279.7) |
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 #282A43 | 13.97:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #282A43 | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #282A43 text on white | 13.97:1 | AAA | Lc 100.6 | Preferred for body text |
| #282A43 text on black | 1.50:1 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F4
oklch(93.6% 0.015 277.8)
-
Step 200
200
#D5D7ED
oklch(88.4% 0.03 281.6)
-
Step 300
300
#B9BEE4
oklch(81% 0.054 279.2)
-
Step 400
400
#959BD6
oklch(70.7% 0.086 279.4)
-
Step 500
500
#7C81CB
oklch(63% 0.111 279.8)
-
Step 600
600
#666AB8
oklch(55.7% 0.12 279.5)
-
Step 700
700
#55589E
oklch(49.1% 0.111 279.6)
-
Step 800
800
#454880
oklch(42.7% 0.092 279.4)
-
Step 900
900
#3A3D67
oklch(37.8% 0.071 279.3)
-
Step 950
950 (this color)
#282A43
oklch(29.5% 0.045 279.7)
#282A43 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) | #222D44 | 0.013 |
| Deuteranopia (no green cones) | #212B42 | 0.012 |
| Tritanopia (no blue cones) | #212F33 | 0.040 |
| Achromatopsia (no color) | #2C2C2C | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282A43
#282A43
oklch(29.5% 0.045 279.7)
- #322D10
#322D10
oklch(29.5% 0.045 99.7)
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 #282A43, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.012
- Gunmetal #293241 ΔE 0.028
- Oxford Blue #1B263B ΔE 0.029
- Dark #1B2431 ΔE 0.044
- Prussian Blue #1D3557 ΔE 0.045
- Jet #212529 ΔE 0.050
- Dark Blue Grey #1F3B4D ΔE 0.054
- Midnight Green #073B4C ΔE 0.059
Use #282A43 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.