#275AA4#275AA4

#275AA4 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 47.3% C 0.131 H 258.1°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#275AA4
RGB	rgb(39, 90, 164)
HSL	hsl(216, 62%, 40%)
HSV	hsv(216, 76%, 64%)
CMYK	cmyk(76.2%, 45.1%, 0%, 35.7%)
CIE-LAB	lab(38.59, 9.76, -44.86)
CIE-LCH	lch(38.59, 45.91, 282.28°)
OKLab	oklab(47.35% -0.0272 -0.1285)
OKLCH	oklch(47.35% 0.131 258.1)
XYZ	xyz(11.1913, 10.4227, 36.5367)
Luminance	0.1042 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275AA4 #A47127

analogous

#2799A4 #275AA4 #3327A4

triadic

#275AA4 #A4275A #5AA427

tetradic

#275AA4 #A42799 #A47127 #27A433

square

#275AA4 #A42799 #A47127 #27A433

split-complementary

#275AA4 #A43327 #99A427

monochromatic

#0F2441 #1B3F73 #275AA4 #3876D0 #6A98DC

Accessibility & contrast

On white

6.81

#275AA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#275AA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275AA4

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275AA4	#FFFFFF	#000000	##FFFFFF
##275AA4	1.00	6.81	3.08	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3461A7

Deuteranopia (green-blind)

#1B56A3

Tritanopia (blue-blind)

#006B77

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #275aa4;
/* rgb */ color: rgb(39, 90, 164);
/* oklch */ color: oklch(47.3% 0.131 258.1);

Tailwind

colors: {
  custom: {
    50: '#7388bf',
    500: '#275aa4',
    950: '#000000',
  },
}

SCSS

$custom: #275aa4;
$custom-light: #7388bf;
$custom-dark: #000000;

JSON

{
  "hex": "#275aa4",
  "rgb": {
    "r": 39,
    "g": 90,
    "b": 164
  },
  "hsl": {
    "h": 215.52,
    "s": 61.576,
    "l": 39.804
  },
  "oklch": {
    "l": 0.47347,
    "c": 0.13136,
    "h": 258.1
  },
  "luminance": 0.10424
}

Semantic roles & 50–950 ramp

primary

#275AA4

secondary

#C29C65

accent

#A343E5

background

#F7F8FB

surface

#EDEFF7

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #275AA4

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

Preview Lab → · Contrast checker → · Palette generator →