#255CAA#255CAA

#255CAA is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.1% C 0.138 H 257.8°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#255CAA
RGB	rgb(37, 92, 170)
HSL	hsl(215, 64%, 41%)
HSV	hsv(215, 78%, 67%)
CMYK	cmyk(78.2%, 45.9%, 0%, 33.3%)
CIE-LAB	lab(39.49, 10.54, -46.98)
CIE-LCH	lch(39.49, 48.14, 282.64°)
OKLab	oklab(48.15% -0.0291 -0.1347)
OKLCH	oklch(48.15% 0.138 257.8)
XYZ	xyz(11.8431, 10.9485, 39.5115)
Luminance	0.1095 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255CAA #AA7325

analogous

#259EAA #255CAA #3025AA

triadic

#255CAA #AA255C #5CAA25

tetradic

#255CAA #AA259E #AA7325 #25AA30

square

#255CAA #AA259E #AA7325 #25AA30

split-complementary

#255CAA #AA3025 #9EAA25

monochromatic

#0F2645 #1A4178 #255CAA #3879D4 #6B9BDF

Accessibility & contrast

On white

6.58

#255CAA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#255CAA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255CAA

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255CAA	#FFFFFF	#000000	##FFFFFF
##255CAA	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3364AD

Deuteranopia (green-blind)

#1557A8

Tritanopia (blue-blind)

#006F7A

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #255caa;
/* rgb */ color: rgb(37, 92, 170);
/* oklch */ color: oklch(48.1% 0.138 257.8);

Tailwind

colors: {
  custom: {
    50: '#7489c4',
    500: '#255caa',
    950: '#000000',
  },
}

SCSS

$custom: #255caa;
$custom-light: #7489c4;
$custom-dark: #000000;

JSON

{
  "hex": "#255caa",
  "rgb": {
    "r": 37,
    "g": 92,
    "b": 170
  },
  "hsl": {
    "h": 215.188,
    "s": 64.251,
    "l": 40.588
  },
  "oklch": {
    "l": 0.48149,
    "c": 0.13784,
    "h": 257.8
  },
  "luminance": 0.1095
}

Semantic roles & 50–950 ramp

primary

#255CAA

secondary

#C59E66

accent

#A241E7

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#090B13

muted

#7B7C82

Preview Lab

Preview with #255CAA

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →