#282A4F
Closest named color: Space Cadet (#2B2D42). oklch(30.3% 0.066 279.3), rgb(40, 42, 79).
Aa
White text reads best on this color (13.68:1).
About this color
#282A4F is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.066 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.028 away. White text reads best on it, at 13.68:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.53:1 |
| White text | 13.68:1 |
Values
| HEX | #282A4F |
| RGB | rgb(40, 42, 79) |
| HSL | hsl(237, 33%, 23%) |
| OKLCH | oklch(30.3% 0.066 279.3) |
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 #282A4F | 13.68:1 | AAA | Lc -103.3 | Preferred for body text |
| Black text on #282A4F | 1.53:1 | Fails | Lc 0.0 | Not readable |
| #282A4F text on white | 13.68:1 | AAA | Lc 100.1 | Preferred for body text |
| #282A4F text on black | 1.53:1 | 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
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D2D7F6
oklch(88.5% 0.043 278.2)
-
Step 300
300
#B5BCF3
oklch(80.9% 0.078 278.9)
-
Step 400
400
#9197ED
oklch(70.7% 0.125 279.6)
-
Step 500
500
#777BE7
oklch(63.1% 0.16 279.2)
-
Step 600
600
#6261D6
oklch(55.6% 0.175 279.4)
-
Step 700
700
#5150B9
oklch(49.1% 0.161 279.1)
-
Step 800
800
#424296
oklch(42.7% 0.134 279.1)
-
Step 900
900
#373977
oklch(37.7% 0.104 278.8)
-
Step 950
950 (this color)
#282A4F
oklch(30.3% 0.066 279.3)
#282A4F 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) | #1C2F50 | 0.022 |
| Deuteranopia (no green cones) | #192C4E | 0.022 |
| Tritanopia (no blue cones) | #1B3238 | 0.059 |
| Achromatopsia (no color) | #2D2D2D | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282A4F
#282A4F
oklch(30.3% 0.066 279.3)
- #362F00
#362F00
oklch(30.3% 0.063 100.4)
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 #282A4F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.028
- Prussian Blue #1D3557 ΔE 0.036
- Gunmetal #293241 ΔE 0.041
- Oxford Blue #1B263B ΔE 0.044
- Marine #042E60 ΔE 0.047
- Dark Blue Grey #1F3B4D ΔE 0.056
- Dark #1B2431 ΔE 0.061
- Midnight Green #073B4C ΔE 0.062
Use #282A4F 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.