#274CB3#274CB3

#274CB3 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.5% C 0.169 H 265.2°. Best body text is #FFFFFF at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#274CB3
RGB	rgb(39, 76, 179)
HSL	hsl(224, 64%, 43%)
HSV	hsv(224, 78%, 70%)
CMYK	cmyk(78.2%, 57.5%, 0%, 29.8%)
CIE-LAB	lab(35.70, 24.84, -58.43)
CIE-LCH	lch(35.70, 63.49, 293.03°)
OKLab	oklab(45.48% -0.0143 -0.1687)
OKLCH	oklch(45.48% 0.169 265.2)
XYZ	xyz(11.5549, 8.8536, 43.7390)
Luminance	0.0886 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#274CB3 #B38E27

analogous

#2792B3 #274CB3 #4827B3

triadic

#274CB3 #B3274C #4CB327

tetradic

#274CB3 #B32792 #B38E27 #27B348

square

#274CB3 #B32792 #B38E27 #27B348

split-complementary

#274CB3 #B34827 #92B327

monochromatic

#11214E #1C3781 #274CB3 #4169D6 #7491E1

Accessibility & contrast

On white

7.58

#274CB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#274CB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #274CB3

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##274CB3	#FFFFFF	#000000	##FFFFFF
##274CB3	1.00	7.58	2.77	7.58
#FFFFFF	7.58	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB7

Deuteranopia (green-blind)

#004EB1

Tritanopia (blue-blind)

#006678

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #274cb3;
/* rgb */ color: rgb(39, 76, 179);
/* oklch */ color: oklch(45.5% 0.169 265.2);

Tailwind

colors: {
  custom: {
    50: '#777dcb',
    500: '#274cb3',
    950: '#000000',
  },
}

SCSS

$custom: #274cb3;
$custom-light: #777dcb;
$custom-dark: #000000;

JSON

{
  "hex": "#274cb3",
  "rgb": {
    "r": 39,
    "g": 76,
    "b": 179
  },
  "hsl": {
    "h": 224.143,
    "s": 64.22,
    "l": 42.745
  },
  "oklch": {
    "l": 0.45481,
    "c": 0.1693,
    "h": 265.2
  },
  "luminance": 0.08855
}

Semantic roles & 50–950 ramp

primary

#274CB3

secondary

#C8B06E

accent

#BB41E7

background

#F7F7FC

surface

#EEEEF9

border

#C9C9D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #274CB3

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

Preview Lab → · Contrast checker → · Palette generator →