#285283
Closest named color: Dusk Blue (#26538D). oklch(43.3% 0.094 253.8), rgb(40, 82, 131).
Aa
White text reads best on this color (8.00:1).
About this color
#285283 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.094 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.016 away. White text reads best on it, at 8.00:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.62:1 |
| White text | 8.00:1 |
Values
| HEX | #285283 |
| RGB | rgb(40, 82, 131) |
| HSL | hsl(212, 53%, 34%) |
| OKLCH | oklch(43.3% 0.094 253.8) |
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 #285283 | 8.00:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #285283 | 2.62:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #285283 text on white | 8.00:1 | AAA | Lc 87.5 | Fine for body text |
| #285283 text on black | 2.62:1 | Fails | Lc -14.6 | 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 800.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF5
oklch(93.7% 0.016 253.9)
-
Step 200
200
#CCDBED
oklch(88.6% 0.03 253)
-
Step 300
300
#A9C3E4
oklch(80.9% 0.055 254.5)
-
Step 400
400
#7AA4D7
oklch(70.8% 0.088 253.7)
-
Step 500
500
#578CCC
oklch(63.1% 0.113 254)
-
Step 600
600
#3B75B9
oklch(55.6% 0.122 253.9)
-
Step 700
700
#2D629F
oklch(49.1% 0.113 253.8)
-
Step 800
800 (this color)
#285283
oklch(43.3% 0.094 253.8)
-
Step 900
900
#244368
oklch(37.8% 0.074 253.9)
-
Step 950
950
#16273D
oklch(27% 0.047 255.4)
#285283 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) | #3C5585 | 0.025 |
| Deuteranopia (no green cones) | #2F4D82 | 0.015 |
| Tritanopia (no blue cones) | #005D64 | 0.074 |
| Achromatopsia (no color) | #505050 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #285283
#285283
oklch(43.3% 0.094 253.8)
- #6E4800
#6E4800
oklch(43.4% 0.092 74.6)
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 #285283, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.016
- Light Navy #155084 ΔE 0.017
- Deep Sea Blue #015482 ΔE 0.022
- Light Navy Blue #2E5A88 ΔE 0.026
- Cobalt #1E488F ΔE 0.040
- Denim Blue #3B5B92 ΔE 0.042
- YInMn Blue #415A77 ΔE 0.046
- Dusk #4E5481 ΔE 0.048
Use #285283 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.