#275CD0#275CD0

#275CD0 is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.1% C 0.188 H 263.0°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#275CD0
RGB	rgb(39, 92, 208)
HSL	hsl(221, 68%, 48%)
HSV	hsv(221, 81%, 82%)
CMYK	cmyk(81.3%, 55.8%, 0%, 18.4%)
CIE-LAB	lab(42.21, 25.42, -64.74)
CIE-LCH	lch(42.21, 69.55, 291.44°)
OKLab	oklab(51.09% -0.023 -0.187)
OKLCH	oklch(51.09% 0.188 263)
XYZ	xyz(16.0449, 12.6378, 61.2560)
Luminance	0.1264 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275CD0 #D09B27

analogous

#27B0D0 #275CD0 #4627D0

triadic

#275CD0 #D0275C #5CD027

tetradic

#275CD0 #D027B0 #D09B27 #27D046

square

#275CD0 #D027B0 #D09B27 #27D046

split-complementary

#275CD0 #D04627 #B0D027

monochromatic

#142E69 #1D459C #275CD0 #5580DF #89A7E9

Accessibility & contrast

On white

5.95

#275CD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#275CD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275CD0

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275CD0	#FFFFFF	#000000	##FFFFFF
##275CD0	1.00	5.95	3.53	5.95
#FFFFFF	5.95	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CD4

Deuteranopia (green-blind)

#005CCE

Tritanopia (blue-blind)

#00798D

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #275cd0;
/* rgb */ color: rgb(39, 92, 208);
/* oklch */ color: oklch(51.1% 0.188 263.0);

Tailwind

colors: {
  custom: {
    50: '#7d89df',
    500: '#275cd0',
    950: '#000000',
  },
}

SCSS

$custom: #275cd0;
$custom-light: #7d89df;
$custom-dark: #000000;

JSON

{
  "hex": "#275cd0",
  "rgb": {
    "r": 39,
    "g": 92,
    "b": 208
  },
  "hsl": {
    "h": 221.183,
    "s": 68.421,
    "l": 48.431
  },
  "oklch": {
    "l": 0.51086,
    "c": 0.18837,
    "h": 263
  },
  "luminance": 0.1264
}

Semantic roles & 50–950 ramp

primary

#275CD0

secondary

#D2B980

accent

#B43DEB

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #275CD0

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

Preview Lab → · Contrast checker → · Palette generator →