#255D7C
Closest named color: Light Navy Blue (#2E5A88). oklch(45.6% 0.077 236.3), rgb(37, 93, 124).
Aa
White text reads best on this color (7.15:1).
About this color
#255D7C is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.077 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.026 away. White text reads best on it, at 7.15:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.93:1 |
| White text | 7.15:1 |
Values
| HEX | #255D7C |
| RGB | rgb(37, 93, 124) |
| HSL | hsl(201, 54%, 32%) |
| OKLCH | oklch(45.6% 0.077 236.3) |
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 #255D7C | 7.15:1 | AAA | Lc -89.5 | Fine for body text |
| Black text on #255D7C | 2.93:1 | Fails | Lc 19.4 | Dividers and decoration only |
| #255D7C text on white | 7.15:1 | AAA | Lc 84.6 | Fine for body text |
| #255D7C text on black | 2.93:1 | Fails | Lc -17.4 | 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
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CADCE8
oklch(88.5% 0.025 236.9)
-
Step 300
300
#A6C6DA
oklch(81% 0.045 235.5)
-
Step 400
400
#74A8C8
oklch(70.7% 0.072 236.2)
-
Step 500
500
#4D92BA
oklch(63.1% 0.092 236.2)
-
Step 600
600
#2C7CA6
oklch(55.7% 0.1 235.8)
-
Step 700
700
#1E688E
oklch(49.1% 0.093 236)
-
Step 800
800 (this color)
#255D7C
oklch(45.6% 0.077 236.3)
-
Step 900
900
#1E465D
oklch(37.6% 0.06 236.6)
-
Step 950
950
#132937
oklch(27% 0.038 238.3)
#255D7C 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) | #4E5C7D | 0.045 |
| Deuteranopia (no green cones) | #42547B | 0.038 |
| Tritanopia (no blue cones) | #006567 | 0.052 |
| Achromatopsia (no color) | #585858 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #255D7C
#255D7C
oklch(45.6% 0.077 236.3)
- #774B29
#774B29
oklch(45.6% 0.077 56.9)
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 #255D7C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.026
- YInMn Blue #415A77 ΔE 0.028
- Denim #3B638C ΔE 0.038
- Petrol #005F6A ΔE 0.039
- Deep Sea Blue #015482 ΔE 0.039
- Peacock Blue #016795 ΔE 0.044
- Denim Blue #3B5B92 ΔE 0.045
- Dusk Blue #26538D ΔE 0.046
Use #255D7C 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.