#285175
Closest named color: Deep Sea Blue (#015482). oklch(42.3% 0.076 247.2), rgb(40, 81, 117).
Aa
White text reads best on this color (8.31:1).
About this color
#285175 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.076 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.028 away. White text reads best on it, at 8.31:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.52:1 |
| White text | 8.31:1 |
Values
| HEX | #285175 |
| RGB | rgb(40, 81, 117) |
| HSL | hsl(208, 49%, 31%) |
| OKLCH | oklch(42.3% 0.076 247.2) |
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 #285175 | 8.31:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #285175 | 2.52:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #285175 text on white | 8.31:1 | AAA | Lc 88.5 | Fine for body text |
| #285175 text on black | 2.52:1 | Fails | Lc -13.6 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CDDBE9
oklch(88.5% 0.025 248.1)
-
Step 300
300
#AAC4DC
oklch(80.9% 0.044 246.2)
-
Step 400
400
#7DA5CB
oklch(70.7% 0.071 247.6)
-
Step 500
500
#5A8EBE
oklch(63% 0.092 247.6)
-
Step 600
600
#3F78AA
oklch(55.6% 0.099 247.1)
-
Step 700
700
#316592
oklch(49.2% 0.091 247.1)
-
Step 800
800 (this color)
#285175
oklch(42.3% 0.076 247.2)
-
Step 900
900
#26445F
oklch(37.6% 0.059 247.2)
-
Step 950
950
#172838
oklch(27% 0.038 247.9)
#285175 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) | #415277 | 0.030 |
| Deuteranopia (no green cones) | #374B74 | 0.023 |
| Tritanopia (no blue cones) | #005A5E | 0.059 |
| Achromatopsia (no color) | #4E4E4E | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #285175
#285175
oklch(42.3% 0.076 247.2)
- #69451A
#69451A
oklch(42.3% 0.076 67.7)
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 #285175, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.028
- Light Navy #155084 ΔE 0.029
- Light Navy Blue #2E5A88 ΔE 0.039
- Dusk Blue #26538D ΔE 0.039
- YInMn Blue #415A77 ΔE 0.043
- Dark Grey Blue #29465B ΔE 0.049
- Twilight Blue #0A437A ΔE 0.054
- Dusk #4E5481 ΔE 0.054
Use #285175 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.