#274BB4#274BB4

#274BB4 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.4% C 0.172 H 265.5°. Best body text is #FFFFFF at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#274BB4
RGB	rgb(39, 75, 180)
HSL	hsl(225, 64%, 43%)
HSV	hsv(225, 78%, 71%)
CMYK	cmyk(78.3%, 58.3%, 0%, 29.4%)
CIE-LAB	lab(35.51, 25.89, -59.33)
CIE-LCH	lch(35.51, 64.73, 293.58°)
OKLab	oklab(45.37% -0.0135 -0.1713)
OKLCH	oklch(45.37% 0.172 265.5)
XYZ	xyz(11.5881, 8.7574, 44.2508)
Luminance	0.0876 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#274BB4 #B49027

analogous

#2791B4 #274BB4 #4927B4

triadic

#274BB4 #B4274B #4BB427

tetradic

#274BB4 #B42791 #B49027 #27B449

square

#274BB4 #B42791 #B49027 #27B449

split-complementary

#274BB4 #B44927 #91B427

monochromatic

#11214F #1C3682 #274BB4 #4268D6 #7490E1

Accessibility & contrast

On white

7.63

#274BB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#274BB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #274BB4

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##274BB4	#FFFFFF	#000000	##FFFFFF
##274BB4	1.00	7.63	2.75	7.63
#FFFFFF	7.63	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AB8

Deuteranopia (green-blind)

#004DB2

Tritanopia (blue-blind)

#006578

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #274bb4;
/* rgb */ color: rgb(39, 75, 180);
/* oklch */ color: oklch(45.4% 0.172 265.5);

Tailwind

colors: {
  custom: {
    50: '#787ccb',
    500: '#274bb4',
    950: '#000000',
  },
}

SCSS

$custom: #274bb4;
$custom-light: #787ccb;
$custom-dark: #000000;

JSON

{
  "hex": "#274bb4",
  "rgb": {
    "r": 39,
    "g": 75,
    "b": 180
  },
  "hsl": {
    "h": 224.681,
    "s": 64.384,
    "l": 42.941
  },
  "oklch": {
    "l": 0.45365,
    "c": 0.17188,
    "h": 265.5
  },
  "luminance": 0.08759
}

Semantic roles & 50–950 ramp

primary

#274BB4

secondary

#C8B16F

accent

#BD40E7

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #274BB4

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

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