#274BB3#274BB3

#274BB3 is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.3% C 0.171 H 265.4°. Best body text is #FFFFFF at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#274BB3
RGB	rgb(39, 75, 179)
HSL	hsl(225, 64%, 43%)
HSV	hsv(225, 78%, 70%)
CMYK	cmyk(78.2%, 58.1%, 0%, 29.8%)
CIE-LAB	lab(35.43, 25.51, -58.87)
CIE-LCH	lch(35.43, 64.16, 293.43°)
OKLab	oklab(45.28% -0.0136 -0.17)
OKLCH	oklch(45.28% 0.171 265.4)
XYZ	xyz(11.4866, 8.7168, 43.7162)
Luminance	0.0872 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#274BB3 #B38F27

analogous

#2791B3 #274BB3 #4927B3

triadic

#274BB3 #B3274B #4BB327

tetradic

#274BB3 #B32791 #B38F27 #27B349

square

#274BB3 #B32791 #B38F27 #27B349

split-complementary

#274BB3 #B34927 #91B327

monochromatic

#11214E #1C3681 #274BB3 #4168D6 #7490E1

Accessibility & contrast

On white

7.65

#274BB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#274BB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #274BB3

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##274BB3	#FFFFFF	#000000	##FFFFFF
##274BB3	1.00	7.65	2.74	7.65
#FFFFFF	7.65	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AB7

Deuteranopia (green-blind)

#004DB1

Tritanopia (blue-blind)

#006577

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #274bb3;
/* rgb */ color: rgb(39, 75, 179);
/* oklch */ color: oklch(45.3% 0.171 265.4);

Tailwind

colors: {
  custom: {
    50: '#777ccb',
    500: '#274bb3',
    950: '#000000',
  },
}

SCSS

$custom: #274bb3;
$custom-light: #777ccb;
$custom-dark: #000000;

JSON

{
  "hex": "#274bb3",
  "rgb": {
    "r": 39,
    "g": 75,
    "b": 179
  },
  "hsl": {
    "h": 224.571,
    "s": 64.22,
    "l": 42.745
  },
  "oklch": {
    "l": 0.45281,
    "c": 0.17054,
    "h": 265.4
  },
  "luminance": 0.08718
}

Semantic roles & 50–950 ramp

primary

#274BB3

secondary

#C8B16E

accent

#BC41E7

background

#F7F7FC

surface

#EEEEF9

border

#C9C9D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #274BB3

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

Preview Lab → · Contrast checker → · Palette generator →