#274BB5#274BB5

#274BB5 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.5% C 0.173 H 265.5°. Best body text is #FFFFFF at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#274BB5
RGB	rgb(39, 75, 181)
HSL	hsl(225, 65%, 43%)
HSV	hsv(225, 78%, 71%)
CMYK	cmyk(78.5%, 58.6%, 0%, 29%)
CIE-LAB	lab(35.59, 26.27, -59.79)
CIE-LCH	lch(35.59, 65.31, 293.72°)
OKLab	oklab(45.45% -0.0135 -0.1727)
OKLCH	oklch(45.45% 0.173 265.5)
XYZ	xyz(11.6903, 8.7983, 44.7892)
Luminance	0.0880 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#274BB5 #B59127

analogous

#2792B5 #274BB5 #4A27B5

triadic

#274BB5 #B5274B #4BB527

tetradic

#274BB5 #B52792 #B59127 #27B54A

square

#274BB5 #B52792 #B59127 #27B54A

split-complementary

#274BB5 #B54A27 #92B527

monochromatic

#112150 #1C3683 #274BB5 #4368D6 #7591E1

Accessibility & contrast

On white

7.61

#274BB5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#274BB5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #274BB5

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##274BB5	#FFFFFF	#000000	##FFFFFF
##274BB5	1.00	7.61	2.76	7.61
#FFFFFF	7.61	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB9

Deuteranopia (green-blind)

#004DB3

Tritanopia (blue-blind)

#006678

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #274bb5;
/* rgb */ color: rgb(39, 75, 181);
/* oklch */ color: oklch(45.5% 0.173 265.5);

Tailwind

colors: {
  custom: {
    50: '#787ccc',
    500: '#274bb5',
    950: '#000000',
  },
}

SCSS

$custom: #274bb5;
$custom-light: #787ccc;
$custom-dark: #000000;

JSON

{
  "hex": "#274bb5",
  "rgb": {
    "r": 39,
    "g": 75,
    "b": 181
  },
  "hsl": {
    "h": 224.789,
    "s": 64.545,
    "l": 43.137
  },
  "oklch": {
    "l": 0.4545,
    "c": 0.17324,
    "h": 265.5
  },
  "luminance": 0.088
}

Semantic roles & 50–950 ramp

primary

#274BB5

secondary

#C9B26F

accent

#BD40E8

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #274BB5

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

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