#274FAB#274FAB

#274FAB is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.4% C 0.155 H 263.7°. Best body text is #FFFFFF at 7.52:1 contrast (WCAG AA passes).

Color values

HEX	#274FAB
RGB	rgb(39, 79, 171)
HSL	hsl(222, 63%, 41%)
HSV	hsv(222, 77%, 67%)
CMYK	cmyk(77.2%, 53.8%, 0%, 32.9%)
CIE-LAB	lab(35.91, 19.76, -53.34)
CIE-LCH	lch(35.91, 56.89, 290.33°)
OKLab	oklab(45.45% -0.017 -0.1537)
OKLCH	oklch(45.45% 0.155 263.7)
XYZ	xyz(10.9808, 8.9623, 39.6714)
Luminance	0.0896 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#274FAB #AB8327

analogous

#2791AB #274FAB #4127AB

triadic

#274FAB #AB274F #4FAB27

tetradic

#274FAB #AB2791 #AB8327 #27AB41

square

#274FAB #AB2791 #AB8327 #27AB41

split-complementary

#274FAB #AB4127 #91AB27

monochromatic

#102147 #1C3879 #274FAB #3D6AD3 #6E90DE

Accessibility & contrast

On white

7.52

#274FAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#274FAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #274FAB

7.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##274FAB	#FFFFFF	#000000	##FFFFFF
##274FAB	1.00	7.52	2.79	7.52
#FFFFFF	7.52	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#065BAE

Deuteranopia (green-blind)

#004FA9

Tritanopia (blue-blind)

#006575

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #274fab;
/* rgb */ color: rgb(39, 79, 171);
/* oklch */ color: oklch(45.4% 0.155 263.7);

Tailwind

colors: {
  custom: {
    50: '#757fc5',
    500: '#274fab',
    950: '#000000',
  },
}

SCSS

$custom: #274fab;
$custom-light: #757fc5;
$custom-dark: #000000;

JSON

{
  "hex": "#274fab",
  "rgb": {
    "r": 39,
    "g": 79,
    "b": 171
  },
  "hsl": {
    "h": 221.818,
    "s": 62.857,
    "l": 41.176
  },
  "oklch": {
    "l": 0.45448,
    "c": 0.15463,
    "h": 263.7
  },
  "luminance": 0.08964
}

Semantic roles & 50–950 ramp

primary

#274FAB

secondary

#C5A969

accent

#B442E6

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #274FAB

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

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