#274FB1#274FB1

#274FB1 is a mid, vivid blue. Relative luminance 0.092; OKLCH L 45.9% C 0.163 H 264.2°. Best body text is #FFFFFF at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#274FB1
RGB	rgb(39, 79, 177)
HSL	hsl(223, 64%, 42%)
HSV	hsv(223, 78%, 69%)
CMYK	cmyk(78%, 55.4%, 0%, 30.6%)
CIE-LAB	lab(36.36, 22.08, -56.18)
CIE-LCH	lch(36.36, 60.36, 291.46°)
OKLab	oklab(45.93% -0.0165 -0.162)
OKLCH	oklch(45.93% 0.163 264.2)
XYZ	xyz(11.5657, 9.1963, 42.7520)
Luminance	0.0920 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#274FB1 #B18927

analogous

#2794B1 #274FB1 #4427B1

triadic

#274FB1 #B1274F #4FB127

tetradic

#274FB1 #B12794 #B18927 #27B144

square

#274FB1 #B12794 #B18927 #27B144

split-complementary

#274FB1 #B14427 #94B127

monochromatic

#11224D #1C397F #274FB1 #406BD5 #7292E0

Accessibility & contrast

On white

7.40

#274FB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#274FB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #274FB1

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##274FB1	#FFFFFF	#000000	##FFFFFF
##274FB1	1.00	7.40	2.84	7.40
#FFFFFF	7.40	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB4

Deuteranopia (green-blind)

#004FAF

Tritanopia (blue-blind)

#006778

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #274fb1;
/* rgb */ color: rgb(39, 79, 177);
/* oklch */ color: oklch(45.9% 0.163 264.2);

Tailwind

colors: {
  custom: {
    50: '#777fc9',
    500: '#274fb1',
    950: '#000000',
  },
}

SCSS

$custom: #274fb1;
$custom-light: #777fc9;
$custom-dark: #000000;

JSON

{
  "hex": "#274fb1",
  "rgb": {
    "r": 39,
    "g": 79,
    "b": 177
  },
  "hsl": {
    "h": 222.609,
    "s": 63.889,
    "l": 42.353
  },
  "oklch": {
    "l": 0.45929,
    "c": 0.16287,
    "h": 264.2
  },
  "luminance": 0.09198
}

Semantic roles & 50–950 ramp

primary

#274FB1

secondary

#C7AD6D

accent

#B741E7

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #274FB1

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

Preview Lab → · Contrast checker → · Palette generator →