#255BAA#255BAA

#255BAA is a mid, vivid blue. Relative luminance 0.108; OKLCH L 47.9% C 0.139 H 258.3°. Best body text is #FFFFFF at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#255BAA
RGB	rgb(37, 91, 170)
HSL	hsl(216, 64%, 41%)
HSV	hsv(216, 78%, 67%)
CMYK	cmyk(78.2%, 46.5%, 0%, 33.3%)
CIE-LAB	lab(39.20, 11.19, -47.45)
CIE-LCH	lch(39.20, 48.75, 283.27°)
OKLab	oklab(47.92% -0.0282 -0.1361)
OKLCH	oklch(47.92% 0.139 258.3)
XYZ	xyz(11.7571, 10.7764, 39.4828)
Luminance	0.1078 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255BAA #AA7425

analogous

#259DAA #255BAA #3125AA

triadic

#255BAA #AA255B #5BAA25

tetradic

#255BAA #AA259D #AA7425 #25AA31

square

#255BAA #AA259D #AA7425 #25AA31

split-complementary

#255BAA #AA3125 #9DAA25

monochromatic

#0F2545 #1A4078 #255BAA #3877D4 #6B9ADF

Accessibility & contrast

On white

6.65

#255BAA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#255BAA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255BAA

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255BAA	#FFFFFF	#000000	##FFFFFF
##255BAA	1.00	6.65	3.16	6.65
#FFFFFF	6.65	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3163AD

Deuteranopia (green-blind)

#1057A8

Tritanopia (blue-blind)

#006E7A

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #255baa;
/* rgb */ color: rgb(37, 91, 170);
/* oklch */ color: oklch(47.9% 0.139 258.3);

Tailwind

colors: {
  custom: {
    50: '#7488c4',
    500: '#255baa',
    950: '#000000',
  },
}

SCSS

$custom: #255baa;
$custom-light: #7488c4;
$custom-dark: #000000;

JSON

{
  "hex": "#255baa",
  "rgb": {
    "r": 37,
    "g": 91,
    "b": 170
  },
  "hsl": {
    "h": 215.639,
    "s": 64.251,
    "l": 40.588
  },
  "oklch": {
    "l": 0.47924,
    "c": 0.13903,
    "h": 258.3
  },
  "luminance": 0.10778
}

Semantic roles & 50–950 ramp

primary

#255BAA

secondary

#C59E66

accent

#A441E7

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090B13

muted

#7B7C82

Preview Lab

Preview with #255BAA

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

Preview Lab → · Contrast checker → · Palette generator →