#274B9B#274B9B

#274B9B is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.3% C 0.137 H 263.5°. Best body text is #FFFFFF at 8.18:1 contrast (WCAG AA passes).

Color values

HEX	#274B9B
RGB	rgb(39, 75, 155)
HSL	hsl(221, 60%, 38%)
HSV	hsv(221, 75%, 61%)
CMYK	cmyk(74.8%, 51.6%, 0%, 39.2%)
CIE-LAB	lab(33.62, 16.23, -47.45)
CIE-LCH	lch(33.62, 50.15, 288.88°)
OKLab	oklab(43.34% -0.0155 -0.1364)
OKLCH	oklch(43.34% 0.137 263.5)
XYZ	xyz(9.2671, 7.8290, 32.0267)
Luminance	0.0783 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#274B9B #9B7727

analogous

#27859B #274B9B #3D279B

triadic

#274B9B #9B274B #4B9B27

tetradic

#274B9B #9B2785 #9B7727 #279B3D

square

#274B9B #9B2785 #9B7727 #279B3D

split-complementary

#274B9B #9B3D27 #859B27

monochromatic

#0E1C39 #1B336A #274B9B #3363CC #6488D8

Accessibility & contrast

On white

8.18

#274B9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#274B9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #274B9B

8.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##274B9B	#FFFFFF	#000000	##FFFFFF
##274B9B	1.00	8.18	2.57	8.18
#FFFFFF	8.18	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19559E

Deuteranopia (green-blind)

#004A99

Tritanopia (blue-blind)

#005E6B

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #274b9b;
/* rgb */ color: rgb(39, 75, 155);
/* oklch */ color: oklch(43.3% 0.137 263.5);

Tailwind

colors: {
  custom: {
    50: '#727cb9',
    500: '#274b9b',
    950: '#000000',
  },
}

SCSS

$custom: #274b9b;
$custom-light: #727cb9;
$custom-dark: #000000;

JSON

{
  "hex": "#274b9b",
  "rgb": {
    "r": 39,
    "g": 75,
    "b": 155
  },
  "hsl": {
    "h": 221.379,
    "s": 59.794,
    "l": 38.039
  },
  "oklch": {
    "l": 0.43342,
    "c": 0.13731,
    "h": 263.5
  },
  "luminance": 0.0783
}

Semantic roles & 50–950 ramp

primary

#274B9B

secondary

#BEA160

accent

#B245E3

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #274B9B

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

Preview Lab → · Contrast checker → · Palette generator →