#283049
Closest named color: Space Cadet (#2B2D42). oklch(31.4% 0.046 270), rgb(40, 48, 73).
Aa
White text reads best on this color (13.04:1).
About this color
#283049 is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.046 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.014 away. White text reads best on it, at 13.04:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.60:1 |
| White text | 13.04:1 |
Values
| HEX | #283049 |
| RGB | rgb(40, 48, 73) |
| HSL | hsl(225, 29%, 22%) |
| OKLCH | oklch(31.4% 0.046 270) |
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 #283049 | 13.04:1 | AAA | Lc -102.5 | Preferred for body text |
| Black text on #283049 | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #283049 text on white | 13.04:1 | AAA | Lc 99.3 | Preferred for body text |
| #283049 text on black | 1.60:1 | 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
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D1D9EE
oklch(88.6% 0.03 269.1)
-
Step 300
300
#B3C0E5
oklch(81% 0.054 269.9)
-
Step 400
400
#8B9ED8
oklch(70.7% 0.088 270.1)
-
Step 500
500
#6F85CE
oklch(63.1% 0.113 270.2)
-
Step 600
600
#586EBA
oklch(55.6% 0.121 270)
-
Step 700
700
#485BA1
oklch(49% 0.114 270.3)
-
Step 800
800
#3B4B82
oklch(42.7% 0.094 269.9)
-
Step 900
900
#323F68
oklch(37.7% 0.072 269.4)
-
Step 950
950 (this color)
#283049
oklch(31.4% 0.046 270)
#283049 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) | #27324A | 0.006 |
| Deuteranopia (no green cones) | #242F48 | 0.007 |
| Tritanopia (no blue cones) | #1D3539 | 0.041 |
| Achromatopsia (no color) | #313131 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #283049
#283049
oklch(31.4% 0.046 270)
- #3A3013
#3A3013
oklch(31.3% 0.047 90.5)
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 #283049, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.014
- Gunmetal #293241 ΔE 0.018
- Prussian Blue #1D3557 ΔE 0.028
- Dark Blue Grey #1F3B4D ΔE 0.036
- Midnight Green #073B4C ΔE 0.044
- Oxford Blue #1B263B ΔE 0.045
- Onyx #343A40 ΔE 0.047
- Marine #042E60 ΔE 0.056
Use #283049 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.