#255D83
Closest named color: Light Navy Blue (#2E5A88). oklch(45.9% 0.085 241.7), rgb(37, 93, 131).
Aa
White text reads best on this color (7.06:1).
About this color
#255D83 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.085 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.015 away. White text reads best on it, at 7.06:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.97:1 |
| White text | 7.06:1 |
Values
| HEX | #255D83 |
| RGB | rgb(37, 93, 131) |
| HSL | hsl(204, 56%, 33%) |
| OKLCH | oklch(45.9% 0.085 241.7) |
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 #255D83 | 7.06:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #255D83 | 2.97:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #255D83 text on white | 7.06:1 | AAA | Lc 84.2 | Fine for body text |
| #255D83 text on black | 2.97:1 | Fails | Lc -17.7 | 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 700.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CDDBE7
oklch(88.4% 0.022 243.8)
-
Step 300
300
#AAC5D9
oklch(81% 0.041 240.1)
-
Step 400
400
#7CA6C6
oklch(70.6% 0.065 241.7)
-
Step 500
500
#5990B8
oklch(63.1% 0.084 241.4)
-
Step 600
600
#3D79A4
oklch(55.5% 0.092 242.1)
-
Step 700
700 (this color)
#255D83
oklch(45.9% 0.085 241.7)
-
Step 800
800
#285372
oklch(42.6% 0.07 242.3)
-
Step 900
900
#25455C
oklch(37.7% 0.055 241.5)
-
Step 950
950
#162936
oklch(27.1% 0.035 239.7)
#255D83 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) | #4C5E85 | 0.043 |
| Deuteranopia (no green cones) | #3F5482 | 0.035 |
| Tritanopia (no blue cones) | #00666A | 0.059 |
| Achromatopsia (no color) | #585858 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #255D83
#255D83
oklch(45.9% 0.085 241.7)
- #794C20
#794C20
oklch(45.9% 0.084 62.1)
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 #255D83, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.015
- YInMn Blue #415A77 ΔE 0.032
- Denim #3B638C ΔE 0.032
- Denim Blue #3B5B92 ΔE 0.035
- Deep Sea Blue #015482 ΔE 0.036
- Peacock Blue #016795 ΔE 0.037
- Dusk Blue #26538D ΔE 0.037
- Light Navy #155084 ΔE 0.044
Use #255D83 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.