#275CB1#275CB1

#275CB1 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.7% C 0.147 H 259.6°. Best body text is #FFFFFF at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#275CB1
RGB	rgb(39, 92, 177)
HSL	hsl(217, 64%, 42%)
HSV	hsv(217, 78%, 69%)
CMYK	cmyk(78%, 48%, 0%, 30.6%)
CIE-LAB	lab(40.01, 13.49, -50.27)
CIE-LCH	lch(40.01, 52.05, 285.02°)
OKLab	oklab(48.71% -0.0266 -0.1444)
OKLCH	oklch(48.71% 0.147 259.6)
XYZ	xyz(12.5968, 11.2585, 43.0957)
Luminance	0.1126 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275CB1 #B17C27

analogous

#27A1B1 #275CB1 #3727B1

triadic

#275CB1 #B1275C #5CB127

tetradic

#275CB1 #B127A1 #B17C27 #27B137

square

#275CB1 #B127A1 #B17C27 #27B137

split-complementary

#275CB1 #B13727 #A1B127

monochromatic

#11284D #1C427F #275CB1 #4079D5 #729CE0

Accessibility & contrast

On white

6.46

#275CB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#275CB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275CB1

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275CB1	#FFFFFF	#000000	##FFFFFF
##275CB1	1.00	6.46	3.25	6.46
#FFFFFF	6.46	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C65B4

Deuteranopia (green-blind)

#0058AF

Tritanopia (blue-blind)

#00707E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #275cb1;
/* rgb */ color: rgb(39, 92, 177);
/* oklch */ color: oklch(48.7% 0.147 259.6);

Tailwind

colors: {
  custom: {
    50: '#7689c9',
    500: '#275cb1',
    950: '#000000',
  },
}

SCSS

$custom: #275cb1;
$custom-light: #7689c9;
$custom-dark: #000000;

JSON

{
  "hex": "#275cb1",
  "rgb": {
    "r": 39,
    "g": 92,
    "b": 177
  },
  "hsl": {
    "h": 216.957,
    "s": 63.889,
    "l": 42.353
  },
  "oklch": {
    "l": 0.48713,
    "c": 0.14682,
    "h": 259.6
  },
  "luminance": 0.1126
}

Semantic roles & 50–950 ramp

primary

#275CB1

secondary

#C7A46D

accent

#A741E7

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #275CB1

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

Preview Lab → · Contrast checker → · Palette generator →