#255C7E
Closest named color: Light Navy Blue (#2E5A88). oklch(45.4% 0.08 239.2), rgb(37, 92, 126).
Aa
White text reads best on this color (7.21:1).
About this color
#255C7E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.080 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.021 away. White text reads best on it, at 7.21:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.91:1 |
| White text | 7.21:1 |
Values
| HEX | #255C7E |
| RGB | rgb(37, 92, 126) |
| HSL | hsl(203, 55%, 32%) |
| OKLCH | oklch(45.4% 0.08 239.2) |
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 #255C7E | 7.21:1 | AAA | Lc -89.7 | Fine for body text |
| Black text on #255C7E | 2.91:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #255C7E text on white | 7.21:1 | AAA | Lc 84.8 | Fine for body text |
| #255C7E text on black | 2.91:1 | Fails | Lc -17.2 | 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
#CADCE9
oklch(88.5% 0.026 239.1)
-
Step 300
300
#A6C5DC
oklch(80.8% 0.047 240.3)
-
Step 400
400
#74A7CB
oklch(70.6% 0.076 239.9)
-
Step 500
500
#4E91BD
oklch(63.1% 0.095 239.5)
-
Step 600
600
#2D7BA9
oklch(55.6% 0.103 238.7)
-
Step 700
700
#1F6791
oklch(49% 0.096 239.3)
-
Step 800
800 (this color)
#255C7E
oklch(45.4% 0.08 239.2)
-
Step 900
900
#1E465F
oklch(37.7% 0.062 238.9)
-
Step 950
950
#132938
oklch(27% 0.04 240.2)
#255C7E 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) | #4C5C80 | 0.043 |
| Deuteranopia (no green cones) | #40537D | 0.036 |
| Tritanopia (no blue cones) | #006568 | 0.056 |
| Achromatopsia (no color) | #575757 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #255C7E
#255C7E
oklch(45.4% 0.08 239.2)
- #774B25
#774B25
oklch(45.5% 0.08 59.5)
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 #255C7E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.021
- YInMn Blue #415A77 ΔE 0.029
- Deep Sea Blue #015482 ΔE 0.035
- Denim #3B638C ΔE 0.038
- Dusk Blue #26538D ΔE 0.041
- Denim Blue #3B5B92 ΔE 0.042
- Petrol #005F6A ΔE 0.043
- Light Navy #155084 ΔE 0.043
Use #255C7E 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.