#275CB5#275CB5

#275CB5 is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.0% C 0.152 H 260.2°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#275CB5
RGB	rgb(39, 92, 181)
HSL	hsl(218, 65%, 43%)
HSV	hsv(218, 78%, 71%)
CMYK	cmyk(78.5%, 49.2%, 0%, 29%)
CIE-LAB	lab(40.28, 15.04, -52.19)
CIE-LCH	lch(40.28, 54.31, 286.08°)
OKLab	oklab(49% -0.0259 -0.15)
OKLCH	oklch(49% 0.152 260.2)
XYZ	xyz(13.0013, 11.4203, 45.2262)
Luminance	0.1142 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275CB5 #B58027

analogous

#27A3B5 #275CB5 #3927B5

triadic

#275CB5 #B5275C #5CB527

tetradic

#275CB5 #B527A3 #B58027 #27B539

square

#275CB5 #B527A3 #B58027 #27B539

split-complementary

#275CB5 #B53927 #A3B527

monochromatic

#112950 #1C4283 #275CB5 #437AD6 #759DE1

Accessibility & contrast

On white

6.39

#275CB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#275CB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275CB5

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275CB5	#FFFFFF	#000000	##FFFFFF
##275CB5	1.00	6.39	3.28	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2866B8

Deuteranopia (green-blind)

#0059B3

Tritanopia (blue-blind)

#007180

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #275cb5;
/* rgb */ color: rgb(39, 92, 181);
/* oklch */ color: oklch(49.0% 0.152 260.2);

Tailwind

colors: {
  custom: {
    50: '#7789cc',
    500: '#275cb5',
    950: '#000000',
  },
}

SCSS

$custom: #275cb5;
$custom-light: #7789cc;
$custom-dark: #000000;

JSON

{
  "hex": "#275cb5",
  "rgb": {
    "r": 39,
    "g": 92,
    "b": 181
  },
  "hsl": {
    "h": 217.606,
    "s": 64.545,
    "l": 43.137
  },
  "oklch": {
    "l": 0.49004,
    "c": 0.15228,
    "h": 260.2
  },
  "luminance": 0.11422
}

Semantic roles & 50–950 ramp

primary

#275CB5

secondary

#C9A76F

accent

#A940E8

background

#F7F8FC

surface

#EEF0F9

border

#C9CBD2

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #275CB5

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

Preview Lab → · Contrast checker → · Palette generator →