#255B80
Closest named color: Light Navy Blue (#2E5A88). oklch(45.3% 0.083 241.9), rgb(37, 91, 128).
Aa
White text reads best on this color (7.27:1).
About this color
#255B80 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.083 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.017 away. White text reads best on it, at 7.27:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.88:1 |
| White text | 7.27:1 |
Values
| HEX | #255B80 |
| RGB | rgb(37, 91, 128) |
| HSL | hsl(204, 55%, 32%) |
| OKLCH | oklch(45.3% 0.083 241.9) |
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 #255B80 | 7.27:1 | AAA | Lc -89.9 | Fine for body text |
| Black text on #255B80 | 2.88:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #255B80 text on white | 7.27:1 | AAA | Lc 85.0 | Fine for body text |
| #255B80 text on black | 2.88:1 | Fails | Lc -17.0 | Dividers and decoration only |
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
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CADCEA
oklch(88.5% 0.027 241.2)
-
Step 300
300
#A6C5DE
oklch(80.9% 0.049 242.6)
-
Step 400
400
#75A7CD
oklch(70.7% 0.077 241.9)
-
Step 500
500
#4E90C0
oklch(63% 0.099 242.2)
-
Step 600
600
#2E7AAD
oklch(55.6% 0.108 242)
-
Step 700
700
#206694
oklch(49% 0.1 242.2)
-
Step 800
800 (this color)
#255B80
oklch(45.3% 0.083 241.9)
-
Step 900
900
#1E4561
oklch(37.6% 0.065 242.5)
-
Step 950
950
#132939
oklch(27.1% 0.041 242)
#255B80 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) | #4A5B82 | 0.041 |
| Deuteranopia (no green cones) | #3E537F | 0.032 |
| Tritanopia (no blue cones) | #006468 | 0.058 |
| Achromatopsia (no color) | #575757 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #255B80
#255B80
oklch(45.3% 0.083 241.9)
- #774A20
#774A20
oklch(45.2% 0.083 60.9)
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 #255B80, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.017
- YInMn Blue #415A77 ΔE 0.030
- Deep Sea Blue #015482 ΔE 0.031
- Dusk Blue #26538D ΔE 0.036
- Denim #3B638C ΔE 0.038
- Denim Blue #3B5B92 ΔE 0.038
- Light Navy #155084 ΔE 0.039
- Peacock Blue #016795 ΔE 0.043
Use #255B80 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.