#275AAD#275AAD

#275AAD is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.0% C 0.144 H 259.8°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#275AAD
RGB	rgb(39, 90, 173)
HSL	hsl(217, 63%, 42%)
HSV	hsv(217, 77%, 68%)
CMYK	cmyk(77.5%, 48%, 0%, 32.2%)
CIE-LAB	lab(39.17, 13.25, -49.26)
CIE-LCH	lch(39.17, 51.01, 285.05°)
OKLab	oklab(47.98% -0.0256 -0.1415)
OKLCH	oklch(47.98% 0.144 259.8)
XYZ	xyz(12.0329, 10.7594, 40.9697)
Luminance	0.1076 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275AAD #AD7A27

analogous

#279DAD #275AAD #3727AD

triadic

#275AAD #AD275A #5AAD27

tetradic

#275AAD #AD279D #AD7A27 #27AD37

square

#275AAD #AD279D #AD7A27 #27AD37

split-complementary

#275AAD #AD3727 #9DAD27

monochromatic

#102649 #1C407B #275AAD #3E77D3 #709ADF

Accessibility & contrast

On white

6.66

#275AAD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#275AAD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275AAD

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275AAD	#FFFFFF	#000000	##FFFFFF
##275AAD	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C63B0

Deuteranopia (green-blind)

#0157AB

Tritanopia (blue-blind)

#006E7B

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #275aad;
/* rgb */ color: rgb(39, 90, 173);
/* oklch */ color: oklch(48.0% 0.144 259.8);

Tailwind

colors: {
  custom: {
    50: '#7588c6',
    500: '#275aad',
    950: '#000000',
  },
}

SCSS

$custom: #275aad;
$custom-light: #7588c6;
$custom-dark: #000000;

JSON

{
  "hex": "#275aad",
  "rgb": {
    "r": 39,
    "g": 90,
    "b": 173
  },
  "hsl": {
    "h": 217.164,
    "s": 63.208,
    "l": 41.569
  },
  "oklch": {
    "l": 0.47983,
    "c": 0.14377,
    "h": 259.8
  },
  "luminance": 0.10761
}

Semantic roles & 50–950 ramp

primary

#275AAD

secondary

#C6A36A

accent

#A842E6

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #275AAD

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

Preview Lab → · Contrast checker → · Palette generator →