#275BB9#275BB9

#275BB9 is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.1% C 0.159 H 261.1°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#275BB9
RGB	rgb(39, 91, 185)
HSL	hsl(219, 65%, 44%)
HSV	hsv(219, 79%, 73%)
CMYK	cmyk(78.9%, 50.8%, 0%, 27.5%)
CIE-LAB	lab(40.27, 17.24, -54.55)
CIE-LCH	lch(40.27, 57.21, 287.54°)
OKLab	oklab(49.08% -0.0246 -0.157)
OKLCH	oklch(49.08% 0.159 261.1)
XYZ	xyz(13.3316, 11.4147, 47.3902)
Luminance	0.1142 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275BB9 #B98527

analogous

#27A4B9 #275BB9 #3C27B9

triadic

#275BB9 #B9275B #5BB927

tetradic

#275BB9 #B927A4 #B98527 #27B93C

square

#275BB9 #B927A4 #B98527 #27B93C

split-complementary

#275BB9 #B93C27 #A4B927

monochromatic

#122954 #1C4286 #275BB9 #457AD8 #789EE3

Accessibility & contrast

On white

6.40

#275BB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#275BB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275BB9

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275BB9	#FFFFFF	#000000	##FFFFFF
##275BB9	1.00	6.40	3.28	6.40
#FFFFFF	6.40	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F66BC

Deuteranopia (green-blind)

#0059B7

Tritanopia (blue-blind)

#007281

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #275bb9;
/* rgb */ color: rgb(39, 91, 185);
/* oklch */ color: oklch(49.1% 0.159 261.1);

Tailwind

colors: {
  custom: {
    50: '#7888cf',
    500: '#275bb9',
    950: '#000000',
  },
}

SCSS

$custom: #275bb9;
$custom-light: #7888cf;
$custom-dark: #000000;

JSON

{
  "hex": "#275bb9",
  "rgb": {
    "r": 39,
    "g": 91,
    "b": 185
  },
  "hsl": {
    "h": 218.63,
    "s": 65.179,
    "l": 43.922
  },
  "oklch": {
    "l": 0.49084,
    "c": 0.15894,
    "h": 261.1
  },
  "luminance": 0.11416
}

Semantic roles & 50–950 ramp

primary

#275BB9

secondary

#CAAB72

accent

#AC40E8

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0A0B14

muted

#7C7C82

Preview Lab

Preview with #275BB9

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

Preview Lab → · Contrast checker → · Palette generator →