#255275
Closest named color: Deep Sea Blue (#015482). oklch(42.4% 0.077 244.6), rgb(37, 82, 117).
Aa
White text reads best on this color (8.25:1).
About this color
#255275 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.077 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.026 away. White text reads best on it, at 8.25:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.54:1 |
| White text | 8.25:1 |
Values
| HEX | #255275 |
| RGB | rgb(37, 82, 117) |
| HSL | hsl(206, 52%, 30%) |
| OKLCH | oklch(42.4% 0.077 244.6) |
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 #255275 | 8.25:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #255275 | 2.54:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #255275 text on white | 8.25:1 | AAA | Lc 88.3 | Fine for body text |
| #255275 text on black | 2.54:1 | Fails | Lc -13.8 | 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
#CCDBE9
oklch(88.4% 0.025 246.2)
-
Step 300
300
#A9C4DC
oklch(80.8% 0.045 245.2)
-
Step 400
400
#7AA6CB
oklch(70.7% 0.072 244.4)
-
Step 500
500
#578FBD
oklch(63% 0.091 244.8)
-
Step 600
600
#3A79A9
oklch(55.6% 0.099 244)
-
Step 700
700
#2C6591
oklch(49% 0.093 244.7)
-
Step 800
800 (this color)
#255275
oklch(42.4% 0.077 244.6)
-
Step 900
900
#24455F
oklch(37.8% 0.059 244.1)
-
Step 950
950
#162838
oklch(26.9% 0.038 246.6)
#255275 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) | #425377 | 0.034 |
| Deuteranopia (no green cones) | #374B74 | 0.026 |
| Tritanopia (no blue cones) | #005A5E | 0.057 |
| Achromatopsia (no color) | #4E4E4E | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #255275
#255275
oklch(42.4% 0.077 244.6)
- #6B441B
#6B441B
oklch(42.3% 0.077 64.1)
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 #255275, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.026
- Light Navy #155084 ΔE 0.029
- Light Navy Blue #2E5A88 ΔE 0.038
- Dusk Blue #26538D ΔE 0.040
- YInMn Blue #415A77 ΔE 0.042
- Dark Grey Blue #29465B ΔE 0.051
- Petrol #005F6A ΔE 0.052
- Twilight Blue #0A437A ΔE 0.055
Use #255275 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.