#275DAB#275DAB

#275DAB is a mid, vivid blue. Relative luminance 0.112; OKLCH L 48.5% C 0.137 H 258.1°. Best body text is #FFFFFF at 6.48:1 contrast (WCAG AA passes).

Color values

HEX	#275DAB
RGB	rgb(39, 93, 171)
HSL	hsl(215, 63%, 41%)
HSV	hsv(215, 77%, 67%)
CMYK	cmyk(77.2%, 45.6%, 0%, 32.9%)
CIE-LAB	lab(39.91, 10.51, -46.89)
CIE-LCH	lch(39.91, 48.05, 282.64°)
OKLab	oklab(48.51% -0.0284 -0.1344)
OKLCH	oklch(48.51% 0.137 258.1)
XYZ	xyz(12.0990, 11.1989, 40.0441)
Luminance	0.1120 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275DAB #AB7527

analogous

#279FAB #275DAB #3327AB

triadic

#275DAB #AB275D #5DAB27

tetradic

#275DAB #AB279F #AB7527 #27AB33

square

#275DAB #AB279F #AB7527 #27AB33

split-complementary

#275DAB #AB3327 #9FAB27

monochromatic

#102747 #1C4279 #275DAB #3D7AD3 #6E9CDE

Accessibility & contrast

On white

6.48

#275DAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#275DAB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275DAB

6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275DAB	#FFFFFF	#000000	##FFFFFF
##275DAB	1.00	6.48	3.24	6.48
#FFFFFF	6.48	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3465AE

Deuteranopia (green-blind)

#1758A9

Tritanopia (blue-blind)

#006F7B

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #275dab;
/* rgb */ color: rgb(39, 93, 171);
/* oklch */ color: oklch(48.5% 0.137 258.1);

Tailwind

colors: {
  custom: {
    50: '#758ac4',
    500: '#275dab',
    950: '#000000',
  },
}

SCSS

$custom: #275dab;
$custom-light: #758ac4;
$custom-dark: #000000;

JSON

{
  "hex": "#275dab",
  "rgb": {
    "r": 39,
    "g": 93,
    "b": 171
  },
  "hsl": {
    "h": 215.455,
    "s": 62.857,
    "l": 41.176
  },
  "oklch": {
    "l": 0.48512,
    "c": 0.13742,
    "h": 258.1
  },
  "luminance": 0.112
}

Semantic roles & 50–950 ramp

primary

#275DAB

secondary

#C59F69

accent

#A342E6

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #275DAB

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

Preview Lab → · Contrast checker → · Palette generator →