#274DAB#274DAB

#274DAB is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.0% C 0.157 H 264.3°. Best body text is #FFFFFF at 7.68:1 contrast (WCAG AA passes).

Color values

HEX	#274DAB
RGB	rgb(39, 77, 171)
HSL	hsl(223, 63%, 41%)
HSV	hsv(223, 77%, 67%)
CMYK	cmyk(77.2%, 55%, 0%, 32.9%)
CIE-LAB	lab(35.36, 21.10, -54.24)
CIE-LCH	lch(35.36, 58.20, 291.25°)
OKLab	oklab(45.03% -0.0155 -0.1564)
OKLCH	oklch(45.03% 0.157 264.3)
XYZ	xyz(10.8387, 8.6781, 39.6240)
Luminance	0.0868 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#274DAB #AB8527

analogous

#278FAB #274DAB #4327AB

triadic

#274DAB #AB274D #4DAB27

tetradic

#274DAB #AB278F #AB8527 #27AB43

square

#274DAB #AB278F #AB8527 #27AB43

split-complementary

#274DAB #AB4327 #8FAB27

monochromatic

#102047 #1C3779 #274DAB #3D68D3 #6E8FDE

Accessibility & contrast

On white

7.68

#274DAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#274DAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #274DAB

7.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##274DAB	#FFFFFF	#000000	##FFFFFF
##274DAB	1.00	7.68	2.74	7.68
#FFFFFF	7.68	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AAE

Deuteranopia (green-blind)

#004DA9

Tritanopia (blue-blind)

#006474

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #274dab;
/* rgb */ color: rgb(39, 77, 171);
/* oklch */ color: oklch(45.0% 0.157 264.3);

Tailwind

colors: {
  custom: {
    50: '#757ec5',
    500: '#274dab',
    950: '#000000',
  },
}

SCSS

$custom: #274dab;
$custom-light: #757ec5;
$custom-dark: #000000;

JSON

{
  "hex": "#274dab",
  "rgb": {
    "r": 39,
    "g": 77,
    "b": 171
  },
  "hsl": {
    "h": 222.727,
    "s": 62.857,
    "l": 41.176
  },
  "oklch": {
    "l": 0.45029,
    "c": 0.15714,
    "h": 264.3
  },
  "luminance": 0.08679
}

Semantic roles & 50–950 ramp

primary

#274DAB

secondary

#C5AA69

accent

#B742E6

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #274DAB

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

Preview Lab → · Contrast checker → · Palette generator →