#275DD0#275DD0

#275DD0 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.3% C 0.187 H 262.7°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#275DD0
RGB	rgb(39, 93, 208)
HSL	hsl(221, 68%, 48%)
HSV	hsv(221, 81%, 82%)
CMYK	cmyk(81.3%, 55.3%, 0%, 18.4%)
CIE-LAB	lab(42.48, 24.77, -64.31)
CIE-LCH	lch(42.48, 68.91, 291.07°)
OKLab	oklab(51.29% -0.0237 -0.1857)
OKLCH	oklch(51.29% 0.187 262.7)
XYZ	xyz(16.1321, 12.8122, 61.2850)
Luminance	0.1281 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275DD0 #D09A27

analogous

#27B1D0 #275DD0 #4527D0

triadic

#275DD0 #D0275D #5DD027

tetradic

#275DD0 #D027B1 #D09A27 #27D045

square

#275DD0 #D027B1 #D09A27 #27D045

split-complementary

#275DD0 #D04527 #B1D027

monochromatic

#142F69 #1D469C #275DD0 #5581DF #89A7E9

Accessibility & contrast

On white

5.89

#275DD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#275DD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275DD0

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275DD0	#FFFFFF	#000000	##FFFFFF
##275DD0	1.00	5.89	3.56	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CD4

Deuteranopia (green-blind)

#005DCE

Tritanopia (blue-blind)

#007A8D

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #275dd0;
/* rgb */ color: rgb(39, 93, 208);
/* oklch */ color: oklch(51.3% 0.187 262.7);

Tailwind

colors: {
  custom: {
    50: '#7d8adf',
    500: '#275dd0',
    950: '#000000',
  },
}

SCSS

$custom: #275dd0;
$custom-light: #7d8adf;
$custom-dark: #000000;

JSON

{
  "hex": "#275dd0",
  "rgb": {
    "r": 39,
    "g": 93,
    "b": 208
  },
  "hsl": {
    "h": 220.828,
    "s": 68.421,
    "l": 48.431
  },
  "oklch": {
    "l": 0.51287,
    "c": 0.18717,
    "h": 262.7
  },
  "luminance": 0.12814
}

Semantic roles & 50–950 ramp

primary

#275DD0

secondary

#D2B880

accent

#B33DEB

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #275DD0

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

Preview Lab → · Contrast checker → · Palette generator →