#275DBC#275DBC

#275DBC is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.7% C 0.161 H 260.8°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX#275DBC
RGBrgb(39, 93, 188)
HSLhsl(218, 66%, 45%)
HSVhsv(218, 79%, 74%)
CMYKcmyk(79.3%, 50.5%, 0%, 26.3%)
CIE-LABlab(41.04, 17.09, -55.06)
CIE-LCHlch(41.04, 57.65, 287.25°)
OKLaboklab(49.74% -0.0257 -0.1585)
OKLCHoklch(49.74% 0.161 260.8)
XYZxyz(13.8249, 11.8892, 49.1334)
Luminance0.1189 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#275DBC #BC8627
analogous
#27A8BC #275DBC #3B27BC
triadic
#275DBC #BC275D #5DBC27
tetradic
#275DBC #BC27A8 #BC8627 #27BC3B
square
#275DBC #BC27A8 #BC8627 #27BC3B
split-complementary
#275DBC #BC3B27 #A8BC27
monochromatic
#122B57 #1C4489 #275DBC #477CD9 #7AA0E3

Accessibility & contrast

On white

6.22
#275DBC on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.38
#275DBC on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275DBC
6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##275DBC#FFFFFF#000000##FFFFFF
##275DBC1.006.223.386.22
#FFFFFF6.221.0021.001.00
#0000003.3821.001.0021.00
##FFFFFF6.221.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2168BF
Deuteranopia (green-blind)
#005ABA
Tritanopia (blue-blind)
#007483
Achromatopsia (no color)
#616161

Design tokens & code

CSS
--color: #275dbc;
/* rgb */ color: rgb(39, 93, 188);
/* oklch */ color: oklch(49.7% 0.161 260.8);
Tailwind
colors: {
  custom: {
    50: '#788ad1',
    500: '#275dbc',
    950: '#000000',
  },
}
SCSS
$custom: #275dbc;
$custom-light: #788ad1;
$custom-dark: #000000;
JSON
{
  "hex": "#275dbc",
  "rgb": {
    "r": 39,
    "g": 93,
    "b": 188
  },
  "hsl": {
    "h": 218.255,
    "s": 65.639,
    "l": 44.51
  },
  "oklch": {
    "l": 0.49738,
    "c": 0.16056,
    "h": 260.8
  },
  "luminance": 0.11891
}

Semantic roles & 50–950 ramp

primary
#275DBC
secondary
#CBAB73
accent
#AB3FE9
background
#F8F8FC
surface
#EFF0F9
border
#CACBD2
text
#0A0B14
muted
#7C7C82

Preview Lab

Preview with #275DBC

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

Preview Lab → · Contrast checker → · Palette generator →

#275DBC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva