#275CB2#275CB2

#275CB2 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.8% C 0.148 H 259.7°. Best body text is #FFFFFF at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#275CB2
RGB	rgb(39, 92, 178)
HSL	hsl(217, 64%, 43%)
HSV	hsv(217, 78%, 70%)
CMYK	cmyk(78.1%, 48.3%, 0%, 30.2%)
CIE-LAB	lab(40.08, 13.88, -50.75)
CIE-LCH	lch(40.08, 52.62, 285.29°)
OKLab	oklab(48.79% -0.0264 -0.1458)
OKLCH	oklch(48.79% 0.148 259.7)
XYZ	xyz(12.6968, 11.2985, 43.6225)
Luminance	0.1130 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275CB2 #B27D27

analogous

#27A2B2 #275CB2 #3727B2

triadic

#275CB2 #B2275C #5CB227

tetradic

#275CB2 #B227A2 #B27D27 #27B237

square

#275CB2 #B227A2 #B27D27 #27B237

split-complementary

#275CB2 #B23727 #A2B227

monochromatic

#11284E #1C4280 #275CB2 #4179D5 #739DE0

Accessibility & contrast

On white

6.44

#275CB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#275CB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275CB2

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275CB2	#FFFFFF	#000000	##FFFFFF
##275CB2	1.00	6.44	3.26	6.44
#FFFFFF	6.44	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B65B5

Deuteranopia (green-blind)

#0059B0

Tritanopia (blue-blind)

#00717E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #275cb2;
/* rgb */ color: rgb(39, 92, 178);
/* oklch */ color: oklch(48.8% 0.148 259.7);

Tailwind

colors: {
  custom: {
    50: '#7689ca',
    500: '#275cb2',
    950: '#000000',
  },
}

SCSS

$custom: #275cb2;
$custom-light: #7689ca;
$custom-dark: #000000;

JSON

{
  "hex": "#275cb2",
  "rgb": {
    "r": 39,
    "g": 92,
    "b": 178
  },
  "hsl": {
    "h": 217.122,
    "s": 64.055,
    "l": 42.549
  },
  "oklch": {
    "l": 0.48785,
    "c": 0.14819,
    "h": 259.7
  },
  "luminance": 0.113
}

Semantic roles & 50–950 ramp

primary

#275CB2

secondary

#C8A56D

accent

#A841E7

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #275CB2

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

Preview Lab → · Contrast checker → · Palette generator →