#275EB1#275EB1

#275EB1 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.2% C 0.144 H 258.7°. Best body text is #FFFFFF at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#275EB1
RGB	rgb(39, 94, 177)
HSL	hsl(216, 64%, 42%)
HSV	hsv(216, 78%, 69%)
CMYK	cmyk(78%, 46.9%, 0%, 30.6%)
CIE-LAB	lab(40.59, 12.19, -49.34)
CIE-LCH	lch(40.59, 50.83, 283.87°)
OKLab	oklab(49.16% -0.0282 -0.1416)
OKLCH	oklch(49.16% 0.144 258.7)
XYZ	xyz(12.7723, 11.6096, 43.1542)
Luminance	0.1161 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275EB1 #B17A27

analogous

#27A3B1 #275EB1 #3527B1

triadic

#275EB1 #B1275E #5EB127

tetradic

#275EB1 #B127A3 #B17A27 #27B135

square

#275EB1 #B127A3 #B17A27 #27B135

split-complementary

#275EB1 #B13527 #A3B127

monochromatic

#11294D #1C437F #275EB1 #407CD5 #729EE0

Accessibility & contrast

On white

6.32

#275EB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#275EB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275EB1

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275EB1	#FFFFFF	#000000	##FFFFFF
##275EB1	1.00	6.32	3.32	6.32
#FFFFFF	6.32	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3166B4

Deuteranopia (green-blind)

#0C5AAF

Tritanopia (blue-blind)

#00727F

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #275eb1;
/* rgb */ color: rgb(39, 94, 177);
/* oklch */ color: oklch(49.2% 0.144 258.7);

Tailwind

colors: {
  custom: {
    50: '#768bc9',
    500: '#275eb1',
    950: '#000000',
  },
}

SCSS

$custom: #275eb1;
$custom-light: #768bc9;
$custom-dark: #000000;

JSON

{
  "hex": "#275eb1",
  "rgb": {
    "r": 39,
    "g": 94,
    "b": 177
  },
  "hsl": {
    "h": 216.087,
    "s": 63.889,
    "l": 42.353
  },
  "oklch": {
    "l": 0.49156,
    "c": 0.14441,
    "h": 258.7
  },
  "luminance": 0.11611
}

Semantic roles & 50–950 ramp

primary

#275EB1

secondary

#C7A36D

accent

#A541E7

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #275EB1

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

Preview Lab → · Contrast checker → · Palette generator →