#274FB3#274FB3

#274FB3 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.1% C 0.166 H 264.3°. Best body text is #FFFFFF at 7.35:1 contrast (WCAG AA passes).

Color values

HEX	#274FB3
RGB	rgb(39, 79, 179)
HSL	hsl(223, 64%, 43%)
HSV	hsv(223, 78%, 70%)
CMYK	cmyk(78.2%, 55.9%, 0%, 29.8%)
CIE-LAB	lab(36.51, 22.85, -57.11)
CIE-LCH	lch(36.51, 61.52, 291.81°)
OKLab	oklab(46.09% -0.0164 -0.1648)
OKLCH	oklch(46.09% 0.166 264.3)
XYZ	xyz(11.7665, 9.2766, 43.8095)
Luminance	0.0928 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#274FB3 #B38B27

analogous

#2795B3 #274FB3 #4527B3

triadic

#274FB3 #B3274F #4FB327

tetradic

#274FB3 #B32795 #B38B27 #27B345

square

#274FB3 #B32795 #B38B27 #27B345

split-complementary

#274FB3 #B34527 #95B327

monochromatic

#11234E #1C3981 #274FB3 #416CD6 #7493E1

Accessibility & contrast

On white

7.35

#274FB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#274FB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #274FB3

7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##274FB3	#FFFFFF	#000000	##FFFFFF
##274FB3	1.00	7.35	2.86	7.35
#FFFFFF	7.35	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DB6

Deuteranopia (green-blind)

#0050B1

Tritanopia (blue-blind)

#006879

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #274fb3;
/* rgb */ color: rgb(39, 79, 179);
/* oklch */ color: oklch(46.1% 0.166 264.3);

Tailwind

colors: {
  custom: {
    50: '#777fca',
    500: '#274fb3',
    950: '#000000',
  },
}

SCSS

$custom: #274fb3;
$custom-light: #777fca;
$custom-dark: #000000;

JSON

{
  "hex": "#274fb3",
  "rgb": {
    "r": 39,
    "g": 79,
    "b": 179
  },
  "hsl": {
    "h": 222.857,
    "s": 64.22,
    "l": 42.745
  },
  "oklch": {
    "l": 0.46091,
    "c": 0.16559,
    "h": 264.3
  },
  "luminance": 0.09278
}

Semantic roles & 50–950 ramp

primary

#274FB3

secondary

#C8AE6E

accent

#B841E7

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #274FB3

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

Preview Lab → · Contrast checker → · Palette generator →