#275AB2#275AB2

#275AB2 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.3% C 0.151 H 260.5°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#275AB2
RGB	rgb(39, 90, 178)
HSL	hsl(218, 64%, 43%)
HSV	hsv(218, 78%, 70%)
CMYK	cmyk(78.1%, 49.4%, 0%, 30.2%)
CIE-LAB	lab(39.51, 15.19, -51.67)
CIE-LCH	lch(39.51, 53.86, 286.38°)
OKLab	oklab(48.35% -0.0248 -0.1486)
OKLCH	oklch(48.35% 0.151 260.5)
XYZ	xyz(12.5258, 10.9566, 43.5655)
Luminance	0.1096 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275AB2 #B27F27

analogous

#279FB2 #275AB2 #3A27B2

triadic

#275AB2 #B2275A #5AB227

tetradic

#275AB2 #B2279F #B27F27 #27B23A

square

#275AB2 #B2279F #B27F27 #27B23A

split-complementary

#275AB2 #B23A27 #9FB227

monochromatic

#11274E #1C4180 #275AB2 #4177D5 #739BE0

Accessibility & contrast

On white

6.58

#275AB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#275AB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275AB2

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275AB2	#FFFFFF	#000000	##FFFFFF
##275AB2	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2664B5

Deuteranopia (green-blind)

#0057B0

Tritanopia (blue-blind)

#006F7D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #275ab2;
/* rgb */ color: rgb(39, 90, 178);
/* oklch */ color: oklch(48.3% 0.151 260.5);

Tailwind

colors: {
  custom: {
    50: '#7688ca',
    500: '#275ab2',
    950: '#000000',
  },
}

SCSS

$custom: #275ab2;
$custom-light: #7688ca;
$custom-dark: #000000;

JSON

{
  "hex": "#275ab2",
  "rgb": {
    "r": 39,
    "g": 90,
    "b": 178
  },
  "hsl": {
    "h": 217.986,
    "s": 64.055,
    "l": 42.549
  },
  "oklch": {
    "l": 0.48347,
    "c": 0.15063,
    "h": 260.5
  },
  "luminance": 0.10958
}

Semantic roles & 50–950 ramp

primary

#275AB2

secondary

#C8A66D

accent

#AA41E7

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #275AB2

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

Preview Lab → · Contrast checker → · Palette generator →