#274EB2#274EB2

#274EB2 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 45.8% C 0.165 H 264.5°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#274EB2
RGB	rgb(39, 78, 178)
HSL	hsl(223, 64%, 43%)
HSV	hsv(223, 78%, 70%)
CMYK	cmyk(78.1%, 56.2%, 0%, 30.2%)
CIE-LAB	lab(36.16, 23.13, -57.09)
CIE-LCH	lch(36.16, 61.60, 292.06°)
OKLab	oklab(45.81% -0.0157 -0.1647)
OKLCH	oklch(45.81% 0.165 264.5)
XYZ	xyz(11.5941, 9.0931, 43.2549)
Luminance	0.0909 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#274EB2 #B28B27

analogous

#2794B2 #274EB2 #4527B2

triadic

#274EB2 #B2274E #4EB227

tetradic

#274EB2 #B22794 #B28B27 #27B245

square

#274EB2 #B22794 #B28B27 #27B245

split-complementary

#274EB2 #B24527 #94B227

monochromatic

#11224E #1C3880 #274EB2 #416BD5 #7392E0

Accessibility & contrast

On white

7.45

#274EB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#274EB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #274EB2

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##274EB2	#FFFFFF	#000000	##FFFFFF
##274EB2	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB5

Deuteranopia (green-blind)

#004FB0

Tritanopia (blue-blind)

#006778

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #274eb2;
/* rgb */ color: rgb(39, 78, 178);
/* oklch */ color: oklch(45.8% 0.165 264.5);

Tailwind

colors: {
  custom: {
    50: '#777fca',
    500: '#274eb2',
    950: '#000000',
  },
}

SCSS

$custom: #274eb2;
$custom-light: #777fca;
$custom-dark: #000000;

JSON

{
  "hex": "#274eb2",
  "rgb": {
    "r": 39,
    "g": 78,
    "b": 178
  },
  "hsl": {
    "h": 223.165,
    "s": 64.055,
    "l": 42.549
  },
  "oklch": {
    "l": 0.45805,
    "c": 0.16547,
    "h": 264.5
  },
  "luminance": 0.09094
}

Semantic roles & 50–950 ramp

primary

#274EB2

secondary

#C8AE6D

accent

#B841E7

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #274EB2

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

Preview Lab → · Contrast checker → · Palette generator →