#275CBB#275CBB

#275CBB is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.4% C 0.160 H 261.0°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#275CBB
RGB	rgb(39, 92, 187)
HSL	hsl(219, 65%, 44%)
HSV	hsv(219, 79%, 73%)
CMYK	cmyk(79.1%, 50.8%, 0%, 26.7%)
CIE-LAB	lab(40.69, 17.36, -55.04)
CIE-LCH	lch(40.69, 57.71, 287.51°)
OKLab	oklab(49.45% -0.0251 -0.1584)
OKLCH	oklch(49.45% 0.16 261)
XYZ	xyz(13.6302, 11.6719, 48.5386)
Luminance	0.1167 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275CBB #BB8627

analogous

#27A6BB #275CBB #3C27BB

triadic

#275CBB #BB275C #5CBB27

tetradic

#275CBB #BB27A6 #BB8627 #27BB3C

square

#275CBB #BB27A6 #BB8627 #27BB3C

split-complementary

#275CBB #BB3C27 #A6BB27

monochromatic

#122A56 #1C4388 #275CBB #477BD9 #799FE3

Accessibility & contrast

On white

6.30

#275CBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#275CBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275CBB

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275CBB	#FFFFFF	#000000	##FFFFFF
##275CBB	1.00	6.30	3.33	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F67BE

Deuteranopia (green-blind)

#005AB9

Tritanopia (blue-blind)

#007383

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #275cbb;
/* rgb */ color: rgb(39, 92, 187);
/* oklch */ color: oklch(49.4% 0.160 261.0);

Tailwind

colors: {
  custom: {
    50: '#7889d0',
    500: '#275cbb',
    950: '#000000',
  },
}

SCSS

$custom: #275cbb;
$custom-light: #7889d0;
$custom-dark: #000000;

JSON

{
  "hex": "#275cbb",
  "rgb": {
    "r": 39,
    "g": 92,
    "b": 187
  },
  "hsl": {
    "h": 218.514,
    "s": 65.487,
    "l": 44.314
  },
  "oklch": {
    "l": 0.49448,
    "c": 0.16042,
    "h": 261
  },
  "luminance": 0.11673
}

Semantic roles & 50–950 ramp

primary

#275CBB

secondary

#CBAB73

accent

#AC3FE8

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0A0B14

muted

#7C7C82

Preview Lab

Preview with #275CBB

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

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