#275AB4#275AB4

#275AB4 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.5% C 0.153 H 260.8°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#275AB4
RGB	rgb(39, 90, 180)
HSL	hsl(218, 64%, 43%)
HSV	hsv(218, 78%, 71%)
CMYK	cmyk(78.3%, 50%, 0%, 29.4%)
CIE-LAB	lab(39.64, 15.96, -52.63)
CIE-LCH	lch(39.64, 55.00, 286.87°)
OKLab	oklab(48.5% -0.0245 -0.1514)
OKLCH	oklch(48.5% 0.153 260.8)
XYZ	xyz(12.7281, 11.0375, 44.6308)
Luminance	0.1104 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275AB4 #B48127

analogous

#27A0B4 #275AB4 #3A27B4

triadic

#275AB4 #B4275A #5AB427

tetradic

#275AB4 #B427A0 #B48127 #27B43A

square

#275AB4 #B427A0 #B48127 #27B43A

split-complementary

#275AB4 #B43A27 #A0B427

monochromatic

#11284F #1C4182 #275AB4 #4278D6 #749CE1

Accessibility & contrast

On white

6.55

#275AB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#275AB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275AB4

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275AB4	#FFFFFF	#000000	##FFFFFF
##275AB4	1.00	6.55	3.21	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2364B7

Deuteranopia (green-blind)

#0057B2

Tritanopia (blue-blind)

#00707E

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #275ab4;
/* rgb */ color: rgb(39, 90, 180);
/* oklch */ color: oklch(48.5% 0.153 260.8);

Tailwind

colors: {
  custom: {
    50: '#7788cb',
    500: '#275ab4',
    950: '#000000',
  },
}

SCSS

$custom: #275ab4;
$custom-light: #7788cb;
$custom-dark: #000000;

JSON

{
  "hex": "#275ab4",
  "rgb": {
    "r": 39,
    "g": 90,
    "b": 180
  },
  "hsl": {
    "h": 218.298,
    "s": 64.384,
    "l": 42.941
  },
  "oklch": {
    "l": 0.48495,
    "c": 0.15335,
    "h": 260.8
  },
  "luminance": 0.11039
}

Semantic roles & 50–950 ramp

primary

#275AB4

secondary

#C8A86F

accent

#AB40E7

background

#F7F8FC

surface

#EEEFF9

border

#C9CAD2

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #275AB4

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

Preview Lab → · Contrast checker → · Palette generator →