#274EB1#274EB1

#274EB1 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 45.7% C 0.164 H 264.5°. Best body text is #FFFFFF at 7.47:1 contrast (WCAG AA passes).

Color values

HEX	#274EB1
RGB	rgb(39, 78, 177)
HSL	hsl(223, 64%, 42%)
HSV	hsv(223, 78%, 69%)
CMYK	cmyk(78%, 55.9%, 0%, 30.6%)
CIE-LAB	lab(36.09, 22.75, -56.62)
CIE-LCH	lch(36.09, 61.02, 291.89°)
OKLab	oklab(45.72% -0.0158 -0.1633)
OKLCH	oklch(45.72% 0.164 264.5)
XYZ	xyz(11.4941, 9.0531, 42.7281)
Luminance	0.0905 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#274EB1 #B18A27

analogous

#2793B1 #274EB1 #4527B1

triadic

#274EB1 #B1274E #4EB127

tetradic

#274EB1 #B12793 #B18A27 #27B145

square

#274EB1 #B12793 #B18A27 #27B145

split-complementary

#274EB1 #B14527 #93B127

monochromatic

#11224D #1C387F #274EB1 #406AD5 #7291E0

Accessibility & contrast

On white

7.47

#274EB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#274EB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #274EB1

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##274EB1	#FFFFFF	#000000	##FFFFFF
##274EB1	1.00	7.47	2.81	7.47
#FFFFFF	7.47	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB4

Deuteranopia (green-blind)

#004FAF

Tritanopia (blue-blind)

#006678

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #274eb1;
/* rgb */ color: rgb(39, 78, 177);
/* oklch */ color: oklch(45.7% 0.164 264.5);

Tailwind

colors: {
  custom: {
    50: '#777fc9',
    500: '#274eb1',
    950: '#000000',
  },
}

SCSS

$custom: #274eb1;
$custom-light: #777fc9;
$custom-dark: #000000;

JSON

{
  "hex": "#274eb1",
  "rgb": {
    "r": 39,
    "g": 78,
    "b": 177
  },
  "hsl": {
    "h": 223.043,
    "s": 63.889,
    "l": 42.353
  },
  "oklch": {
    "l": 0.45723,
    "c": 0.16411,
    "h": 264.5
  },
  "luminance": 0.09054
}

Semantic roles & 50–950 ramp

primary

#274EB1

secondary

#C7AE6D

accent

#B841E7

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #274EB1

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

Preview Lab → · Contrast checker → · Palette generator →