#282C4B
Closest named color: Space Cadet (#2B2D42). oklch(30.5% 0.056 276.9), rgb(40, 44, 75).
Aa
White text reads best on this color (13.53:1).
About this color
#282C4B is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.056 and its hue 277°. 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 13.53:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.55:1 |
| White text | 13.53:1 |
Values
| HEX | #282C4B |
| RGB | rgb(40, 44, 75) |
| HSL | hsl(233, 30%, 23%) |
| OKLCH | oklch(30.5% 0.056 276.9) |
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 #282C4B | 13.53:1 | AAA | Lc -103.1 | Preferred for body text |
| Black text on #282C4B | 1.55:1 | Fails | Lc 0.0 | Not readable |
| #282C4B text on white | 13.53:1 | AAA | Lc 100.0 | Preferred for body text |
| #282C4B text on black | 1.55:1 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F7
oklch(93.6% 0.019 276.3)
-
Step 200
200
#D2D8F2
oklch(88.6% 0.036 275.3)
-
Step 300
300
#B5BDEC
oklch(80.8% 0.067 277.2)
-
Step 400
400
#909AE2
oklch(70.7% 0.106 277.3)
-
Step 500
500
#7680DA
oklch(63.2% 0.135 277)
-
Step 600
600
#5F67C8
oklch(55.6% 0.148 276.9)
-
Step 700
700
#4F55AD
oklch(49.1% 0.138 277.1)
-
Step 800
800
#41468C
oklch(42.7% 0.114 277.3)
-
Step 900
900
#363C70
oklch(37.8% 0.088 276.3)
-
Step 950
950 (this color)
#282C4B
oklch(30.5% 0.056 276.9)
#282C4B 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) | #21304C | 0.015 |
| Deuteranopia (no green cones) | #1F2D4A | 0.014 |
| Tritanopia (no blue cones) | #1D3238 | 0.048 |
| Achromatopsia (no color) | #2E2E2E | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282C4B
#282C4B
oklch(30.5% 0.056 276.9)
- #372F08
#372F08
oklch(30.5% 0.056 97.2)
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 #282C4B, 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 0.031
- Prussian Blue #1D3557 ΔE 0.033
- Oxford Blue #1B263B ΔE 0.040
- Dark Blue Grey #1F3B4D ΔE 0.049
- Marine #042E60 ΔE 0.051
- Midnight Green #073B4C ΔE 0.055
- Dark #1B2431 ΔE 0.057
Use #282C4B 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.