#255BA8#255BA8

#255BA8 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 47.8% C 0.136 H 257.9°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#255BA8
RGB	rgb(37, 91, 168)
HSL	hsl(215, 64%, 40%)
HSV	hsv(215, 78%, 66%)
CMYK	cmyk(78%, 45.8%, 0%, 34.1%)
CIE-LAB	lab(39.07, 10.41, -46.47)
CIE-LCH	lch(39.07, 47.62, 282.63°)
OKLab	oklab(47.78% -0.0286 -0.1333)
OKLCH	oklch(47.78% 0.136 257.9)
XYZ	xyz(11.5693, 10.7013, 38.4940)
Luminance	0.1070 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255BA8 #A87225

analogous

#259CA8 #255BA8 #3025A8

triadic

#255BA8 #A8255B #5BA825

tetradic

#255BA8 #A8259C #A87225 #25A830

square

#255BA8 #A8259C #A87225 #25A830

split-complementary

#255BA8 #A83025 #9CA825

monochromatic

#0F2544 #1A4076 #255BA8 #3777D3 #6999DE

Accessibility & contrast

On white

6.69

#255BA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#255BA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255BA8

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255BA8	#FFFFFF	#000000	##FFFFFF
##255BA8	1.00	6.69	3.14	6.69
#FFFFFF	6.69	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3362AB

Deuteranopia (green-blind)

#1556A6

Tritanopia (blue-blind)

#006D79

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #255ba8;
/* rgb */ color: rgb(37, 91, 168);
/* oklch */ color: oklch(47.8% 0.136 257.9);

Tailwind

colors: {
  custom: {
    50: '#7388c2',
    500: '#255ba8',
    950: '#000000',
  },
}

SCSS

$custom: #255ba8;
$custom-light: #7388c2;
$custom-dark: #000000;

JSON

{
  "hex": "#255ba8",
  "rgb": {
    "r": 37,
    "g": 91,
    "b": 168
  },
  "hsl": {
    "h": 215.267,
    "s": 63.902,
    "l": 40.196
  },
  "oklch": {
    "l": 0.47783,
    "c": 0.13629,
    "h": 257.9
  },
  "luminance": 0.10703
}

Semantic roles & 50–950 ramp

primary

#255BA8

secondary

#C49D65

accent

#A241E7

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #255BA8

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

Preview Lab → · Contrast checker → · Palette generator →