#255F7F
Closest named color: Light Navy Blue (#2E5A88). oklch(46.2% 0.079 236.3), rgb(37, 95, 127).
Aa
White text reads best on this color (6.94:1).
About this color
#255F7F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.079 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.025 away. White text reads best on it, at 6.94:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 3.02:1 |
| White text | 6.94:1 |
Values
| HEX | #255F7F |
| RGB | rgb(37, 95, 127) |
| HSL | hsl(201, 55%, 32%) |
| OKLCH | oklch(46.2% 0.079 236.3) |
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 #255F7F | 6.94:1 | AA | Lc -88.8 | Fine for body text |
| Black text on #255F7F | 3.02:1 | AA large text | Lc 20.2 | Dividers and decoration only |
| #255F7F text on white | 6.94:1 | AA | Lc 83.8 | Fine for body text |
| #255F7F text on black | 3.02:1 | AA large text | Lc -18.2 | 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 700.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CDDCE6
oklch(88.6% 0.021 236.8)
-
Step 300
300
#AAC5D6
oklch(80.9% 0.038 235.6)
-
Step 400
400
#7CA7C2
oklch(70.7% 0.061 236.3)
-
Step 500
500
#5991B3
oklch(63.1% 0.078 236.5)
-
Step 600
600
#3C7B9F
oklch(55.7% 0.086 236.2)
-
Step 700
700 (this color)
#255F7F
oklch(46.2% 0.079 236.3)
-
Step 800
800
#27546E
oklch(42.6% 0.066 236.5)
-
Step 900
900
#254659
oklch(37.8% 0.051 235.5)
-
Step 950
950
#162934
oklch(27% 0.032 235.1)
#255F7F 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) | #505E80 | 0.047 |
| Deuteranopia (no green cones) | #43567E | 0.038 |
| Tritanopia (no blue cones) | #00676A | 0.052 |
| Achromatopsia (no color) | #5A5A5A | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #255F7F
#255F7F
oklch(46.2% 0.079 236.3)
- #7A4C2A
#7A4C2A
oklch(46.2% 0.079 55.7)
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 #255F7F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.025
- YInMn Blue #415A77 ΔE 0.030
- Denim #3B638C ΔE 0.033
- Peacock Blue #016795 ΔE 0.038
- Petrol #005F6A ΔE 0.042
- Denim Blue #3B5B92 ΔE 0.043
- Deep Sea Blue #015482 ΔE 0.043
- Dusk Blue #26538D ΔE 0.047
Use #255F7F 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.