#274DB5#274DB5

#274DB5 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 45.9% C 0.171 H 265.0°. Best body text is #FFFFFF at 7.46:1 contrast (WCAG AA passes).

Color values

HEX	#274DB5
RGB	rgb(39, 77, 181)
HSL	hsl(224, 65%, 43%)
HSV	hsv(224, 78%, 71%)
CMYK	cmyk(78.5%, 57.5%, 0%, 29%)
CIE-LAB	lab(36.13, 24.95, -58.92)
CIE-LCH	lch(36.13, 63.98, 292.95°)
OKLab	oklab(45.85% -0.0149 -0.1701)
OKLCH	oklch(45.85% 0.171 265)
XYZ	xyz(11.8281, 9.0739, 44.8352)
Luminance	0.0907 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#274DB5 #B58F27

analogous

#2794B5 #274DB5 #4827B5

triadic

#274DB5 #B5274D #4DB527

tetradic

#274DB5 #B52794 #B58F27 #27B548

square

#274DB5 #B52794 #B58F27 #27B548

split-complementary

#274DB5 #B54827 #94B527

monochromatic

#112250 #1C3883 #274DB5 #436AD6 #7592E1

Accessibility & contrast

On white

7.46

#274DB5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#274DB5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #274DB5

7.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##274DB5	#FFFFFF	#000000	##FFFFFF
##274DB5	1.00	7.46	2.81	7.46
#FFFFFF	7.46	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB9

Deuteranopia (green-blind)

#004FB3

Tritanopia (blue-blind)

#006779

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #274db5;
/* rgb */ color: rgb(39, 77, 181);
/* oklch */ color: oklch(45.9% 0.171 265.0);

Tailwind

colors: {
  custom: {
    50: '#787ecc',
    500: '#274db5',
    950: '#000000',
  },
}

SCSS

$custom: #274db5;
$custom-light: #787ecc;
$custom-dark: #000000;

JSON

{
  "hex": "#274db5",
  "rgb": {
    "r": 39,
    "g": 77,
    "b": 181
  },
  "hsl": {
    "h": 223.944,
    "s": 64.545,
    "l": 43.137
  },
  "oklch": {
    "l": 0.4585,
    "c": 0.17077,
    "h": 265
  },
  "luminance": 0.09075
}

Semantic roles & 50–950 ramp

primary

#274DB5

secondary

#C9B16F

accent

#BB40E8

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #274DB5

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

Preview Lab → · Contrast checker → · Palette generator →