#275BBB#275BBB

#275BBB is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.2% C 0.162 H 261.3°. Best body text is #FFFFFF at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#275BBB
RGB	rgb(39, 91, 187)
HSL	hsl(219, 65%, 44%)
HSV	hsv(219, 79%, 73%)
CMYK	cmyk(79.1%, 51.3%, 0%, 26.7%)
CIE-LAB	lab(40.41, 18.02, -55.49)
CIE-LCH	lch(40.41, 58.34, 287.99°)
OKLab	oklab(49.24% -0.0244 -0.1598)
OKLCH	oklch(49.24% 0.162 261.3)
XYZ	xyz(13.5442, 11.4998, 48.5099)
Luminance	0.1150 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275BBB #BB8727

analogous

#27A5BB #275BBB #3D27BB

triadic

#275BBB #BB275B #5BBB27

tetradic

#275BBB #BB27A5 #BB8727 #27BB3D

square

#275BBB #BB27A5 #BB8727 #27BB3D

split-complementary

#275BBB #BB3D27 #A5BB27

monochromatic

#122A56 #1C4288 #275BBB #477AD9 #799EE3

Accessibility & contrast

On white

6.36

#275BBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#275BBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275BBB

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275BBB	#FFFFFF	#000000	##FFFFFF
##275BBB	1.00	6.36	3.30	6.36
#FFFFFF	6.36	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C66BE

Deuteranopia (green-blind)

#0059B9

Tritanopia (blue-blind)

#007282

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #275bbb;
/* rgb */ color: rgb(39, 91, 187);
/* oklch */ color: oklch(49.2% 0.162 261.3);

Tailwind

colors: {
  custom: {
    50: '#7888d0',
    500: '#275bbb',
    950: '#000000',
  },
}

SCSS

$custom: #275bbb;
$custom-light: #7888d0;
$custom-dark: #000000;

JSON

{
  "hex": "#275bbb",
  "rgb": {
    "r": 39,
    "g": 91,
    "b": 187
  },
  "hsl": {
    "h": 218.919,
    "s": 65.487,
    "l": 44.314
  },
  "oklch": {
    "l": 0.49235,
    "c": 0.16164,
    "h": 261.3
  },
  "luminance": 0.11501
}

Semantic roles & 50–950 ramp

primary

#275BBB

secondary

#CBAC73

accent

#AD3FE8

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0A0B14

muted

#7C7C82

Preview Lab

Preview with #275BBB

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

Preview Lab → · Contrast checker → · Palette generator →