#282E4C
Closest named color: Space Cadet (#2B2D42). oklch(31.1% 0.055 274.2), rgb(40, 46, 76).
Aa
White text reads best on this color (13.24:1).
About this color
#282E4C is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.055 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.018 away. White text reads best on it, at 13.24:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.58:1 |
| White text | 13.24:1 |
Values
| HEX | #282E4C |
| RGB | rgb(40, 46, 76) |
| HSL | hsl(230, 31%, 23%) |
| OKLCH | oklch(31.1% 0.055 274.2) |
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 #282E4C | 13.24:1 | AAA | Lc -102.8 | Preferred for body text |
| Black text on #282E4C | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #282E4C text on white | 13.24:1 | AAA | Lc 99.6 | Preferred for body text |
| #282E4C text on black | 1.58:1 | 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
#E6E9F7
oklch(93.6% 0.019 276.3)
-
Step 200
200
#D1D8F2
oklch(88.5% 0.037 273.7)
-
Step 300
300
#B3BEEB
oklch(80.8% 0.065 274.1)
-
Step 400
400
#8D9CE1
oklch(70.8% 0.103 274.1)
-
Step 500
500
#7281D9
oklch(63.1% 0.133 274.6)
-
Step 600
600
#5B69C6
oklch(55.6% 0.144 274.3)
-
Step 700
700
#4B57AB
oklch(49.1% 0.134 274.3)
-
Step 800
800
#3D488B
oklch(42.8% 0.111 273.8)
-
Step 900
900
#343D6F
oklch(37.8% 0.086 273.9)
-
Step 950
950 (this color)
#282E4C
oklch(31.1% 0.055 274.2)
#282E4C 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) | #23314D | 0.011 |
| Deuteranopia (no green cones) | #212E4B | 0.011 |
| Tritanopia (no blue cones) | #1C3439 | 0.048 |
| Achromatopsia (no color) | #303030 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282E4C
#282E4C
oklch(31.1% 0.055 274.2)
- #39300B
#39300B
oklch(31.1% 0.054 95.2)
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 #282E4C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.018
- Gunmetal #293241 ΔE 0.027
- Prussian Blue #1D3557 ΔE 0.028
- Dark Blue Grey #1F3B4D ΔE 0.043
- Oxford Blue #1B263B ΔE 0.044
- Midnight Green #073B4C ΔE 0.050
- Marine #042E60 ΔE 0.051
- Onyx #343A40 ΔE 0.055
Use #282E4C 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.