#274D9B#274D9B

#274D9B is a dark, vivid blue. Relative luminance 0.081; OKLCH L 43.8% C 0.135 H 262.6°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#274D9B
RGB	rgb(39, 77, 155)
HSL	hsl(220, 60%, 38%)
HSV	hsv(220, 75%, 61%)
CMYK	cmyk(74.8%, 50.3%, 0%, 39.2%)
CIE-LAB	lab(34.20, 14.89, -46.52)
CIE-LCH	lch(34.20, 48.84, 287.74°)
OKLab	oklab(43.78% -0.0173 -0.1337)
OKLCH	oklch(43.78% 0.135 262.6)
XYZ	xyz(9.4049, 8.1046, 32.0727)
Luminance	0.0811 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#274D9B #9B7527

analogous

#27879B #274D9B #3B279B

triadic

#274D9B #9B274D #4D9B27

tetradic

#274D9B #9B2787 #9B7527 #279B3B

square

#274D9B #9B2787 #9B7527 #279B3B

split-complementary

#274D9B #9B3B27 #879B27

monochromatic

#0E1C39 #1B356A #274D9B #3365CC #648AD8

Accessibility & contrast

On white

8.01

#274D9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#274D9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #274D9B

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##274D9B	#FFFFFF	#000000	##FFFFFF
##274D9B	1.00	8.01	2.62	8.01
#FFFFFF	8.01	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F569E

Deuteranopia (green-blind)

#004B99

Tritanopia (blue-blind)

#00606C

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #274d9b;
/* rgb */ color: rgb(39, 77, 155);
/* oklch */ color: oklch(43.8% 0.135 262.6);

Tailwind

colors: {
  custom: {
    50: '#727eb9',
    500: '#274d9b',
    950: '#000000',
  },
}

SCSS

$custom: #274d9b;
$custom-light: #727eb9;
$custom-dark: #000000;

JSON

{
  "hex": "#274d9b",
  "rgb": {
    "r": 39,
    "g": 77,
    "b": 155
  },
  "hsl": {
    "h": 220.345,
    "s": 59.794,
    "l": 38.039
  },
  "oklch": {
    "l": 0.43782,
    "c": 0.13477,
    "h": 262.6
  },
  "luminance": 0.08106
}

Semantic roles & 50–950 ramp

primary

#274D9B

secondary

#BE9F60

accent

#AF45E3

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #274D9B

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

Preview Lab → · Contrast checker → · Palette generator →