#275DBB#275DBB

#275DBB is a mid, vivid blue. Relative luminance 0.118; OKLCH L 49.7% C 0.159 H 260.6°. Best body text is #FFFFFF at 6.23:1 contrast (WCAG AA passes).

Color values

HEX	#275DBB
RGB	rgb(39, 93, 187)
HSL	hsl(218, 65%, 44%)
HSV	hsv(218, 79%, 73%)
CMYK	cmyk(79.1%, 50.3%, 0%, 26.7%)
CIE-LAB	lab(40.97, 16.71, -54.59)
CIE-LCH	lch(40.97, 57.09, 287.02°)
OKLab	oklab(49.66% -0.0259 -0.1571)
OKLCH	oklch(49.66% 0.159 260.6)
XYZ	xyz(13.7174, 11.8463, 48.5677)
Luminance	0.1185 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275DBB #BB8527

analogous

#27A7BB #275DBB #3B27BB

triadic

#275DBB #BB275D #5DBB27

tetradic

#275DBB #BB27A7 #BB8527 #27BB3B

square

#275DBB #BB27A7 #BB8527 #27BB3B

split-complementary

#275DBB #BB3B27 #A7BB27

monochromatic

#122B56 #1C4488 #275DBB #477CD9 #79A0E3

Accessibility & contrast

On white

6.23

#275DBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#275DBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275DBB

6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275DBB	#FFFFFF	#000000	##FFFFFF
##275DBB	1.00	6.23	3.37	6.23
#FFFFFF	6.23	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2368BE

Deuteranopia (green-blind)

#005AB9

Tritanopia (blue-blind)

#007483

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #275dbb;
/* rgb */ color: rgb(39, 93, 187);
/* oklch */ color: oklch(49.7% 0.159 260.6);

Tailwind

colors: {
  custom: {
    50: '#788ad0',
    500: '#275dbb',
    950: '#000000',
  },
}

SCSS

$custom: #275dbb;
$custom-light: #788ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#275dbb",
  "rgb": {
    "r": 39,
    "g": 93,
    "b": 187
  },
  "hsl": {
    "h": 218.108,
    "s": 65.487,
    "l": 44.314
  },
  "oklch": {
    "l": 0.49663,
    "c": 0.15921,
    "h": 260.6
  },
  "luminance": 0.11848
}

Semantic roles & 50–950 ramp

primary

#275DBB

secondary

#CBAB73

accent

#AB3FE8

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0A0B14

muted

#7C7C82

Preview Lab

Preview with #275DBB

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

Preview Lab → · Contrast checker → · Palette generator →