#275FB8#275FB8

#275FB8 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 49.9% C 0.153 H 259.5°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#275FB8
RGB	rgb(39, 95, 184)
HSL	hsl(217, 65%, 44%)
HSV	hsv(217, 79%, 72%)
CMYK	cmyk(78.8%, 48.4%, 0%, 27.8%)
CIE-LAB	lab(41.33, 14.24, -52.25)
CIE-LCH	lch(41.33, 54.15, 285.25°)
OKLab	oklab(49.88% -0.0279 -0.1502)
OKLCH	oklch(49.88% 0.153 259.5)
XYZ	xyz(13.5775, 12.0748, 46.9532)
Luminance	0.1208 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275FB8 #B88027

analogous

#27A7B8 #275FB8 #3827B8

triadic

#275FB8 #B8275F #5FB827

tetradic

#275FB8 #B827A7 #B88027 #27B838

square

#275FB8 #B827A7 #B88027 #27B838

split-complementary

#275FB8 #B83827 #A7B827

monochromatic

#122B53 #1C4586 #275FB8 #457DD8 #77A1E2

Accessibility & contrast

On white

6.15

#275FB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#275FB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275FB8

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275FB8	#FFFFFF	#000000	##FFFFFF
##275FB8	1.00	6.15	3.42	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C69BB

Deuteranopia (green-blind)

#005BB6

Tritanopia (blue-blind)

#007482

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #275fb8;
/* rgb */ color: rgb(39, 95, 184);
/* oklch */ color: oklch(49.9% 0.153 259.5);

Tailwind

colors: {
  custom: {
    50: '#778bce',
    500: '#275fb8',
    950: '#000000',
  },
}

SCSS

$custom: #275fb8;
$custom-light: #778bce;
$custom-dark: #000000;

JSON

{
  "hex": "#275fb8",
  "rgb": {
    "r": 39,
    "g": 95,
    "b": 184
  },
  "hsl": {
    "h": 216.828,
    "s": 65.022,
    "l": 43.725
  },
  "oklch": {
    "l": 0.49878,
    "c": 0.15272,
    "h": 259.5
  },
  "luminance": 0.12076
}

Semantic roles & 50–950 ramp

primary

#275FB8

secondary

#CAA871

accent

#A740E8

background

#F7F8FC

surface

#EEF0F9

border

#C9CBD2

text

#0A0C14

muted

#7C7D82

Preview Lab

Preview with #275FB8

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

Preview Lab → · Contrast checker → · Palette generator →