#282F52
Closest named color: Prussian Blue (#1D3557). oklch(31.7% 0.063 273.7), rgb(40, 47, 82).
Aa
White text reads best on this color (12.97:1).
About this color
#282F52 is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.063 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.022 away. White text reads best on it, at 12.97:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.61:1 |
| White text | 12.97:1 |
Values
| HEX | #282F52 |
| RGB | rgb(40, 47, 82) |
| HSL | hsl(230, 34%, 24%) |
| OKLCH | oklch(31.7% 0.063 273.7) |
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 #282F52 | 12.97:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #282F52 | 1.61:1 | Fails | Lc 0.0 | Not readable |
| #282F52 text on white | 12.97:1 | AAA | Lc 99.1 | Preferred for body text |
| #282F52 text on black | 1.61:1 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F9
oklch(93.6% 0.022 274.7)
-
Step 200
200
#D0D8F5
oklch(88.5% 0.041 273.3)
-
Step 300
300
#B1BEF2
oklch(81% 0.075 273.7)
-
Step 400
400
#899AEB
oklch(70.6% 0.12 273.9)
-
Step 500
500
#6D7FE5
oklch(63% 0.154 273.7)
-
Step 600
600
#5766D3
oklch(55.6% 0.167 273.8)
-
Step 700
700
#4754B7
oklch(49.1% 0.156 273.6)
-
Step 800
800
#3B4594
oklch(42.6% 0.129 274.2)
-
Step 900
900
#323B76
oklch(37.7% 0.1 274.1)
-
Step 950
950 (this color)
#282F52
oklch(31.7% 0.063 273.7)
#282F52 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) | #223353 | 0.014 |
| Deuteranopia (no green cones) | #1E3051 | 0.014 |
| Tritanopia (no blue cones) | #18363C | 0.056 |
| Achromatopsia (no color) | #313131 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282F52
#282F52
oklch(31.7% 0.063 273.7)
- #3D3102
#3D3102
oklch(31.7% 0.063 93.5)
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 #282F52, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.022
- Space Cadet #2B2D42 ΔE 0.028
- Gunmetal #293241 ΔE 0.035
- Dark Blue Grey #1F3B4D ΔE 0.043
- Marine #042E60 ΔE 0.045
- Midnight Green #073B4C ΔE 0.051
- Oxford Blue #1B263B ΔE 0.053
- Marine Blue #01386A ΔE 0.053
Use #282F52 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.