#274DB0#274DB0

#274DB0 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.4% C 0.164 H 264.7°. Best body text is #FFFFFF at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#274DB0
RGB	rgb(39, 77, 176)
HSL	hsl(223, 64%, 42%)
HSV	hsv(223, 78%, 69%)
CMYK	cmyk(77.8%, 56.2%, 0%, 31%)
CIE-LAB	lab(35.74, 23.03, -56.60)
CIE-LCH	lch(35.74, 61.10, 292.14°)
OKLab	oklab(45.43% -0.0151 -0.1633)
OKLCH	oklch(45.43% 0.164 264.7)
XYZ	xyz(11.3243, 8.8724, 42.1816)
Luminance	0.0887 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#274DB0 #B08A27

analogous

#2791B0 #274DB0 #4627B0

triadic

#274DB0 #B0274D #4DB027

tetradic

#274DB0 #B02791 #B08A27 #27B046

square

#274DB0 #B02791 #B08A27 #27B046

split-complementary

#274DB0 #B04627 #91B027

monochromatic

#11214C #1C377E #274DB0 #4069D5 #7290E0

Accessibility & contrast

On white

7.57

#274DB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#274DB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #274DB0

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##274DB0	#FFFFFF	#000000	##FFFFFF
##274DB0	1.00	7.57	2.77	7.57
#FFFFFF	7.57	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB3

Deuteranopia (green-blind)

#004EAE

Tritanopia (blue-blind)

#006677

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #274db0;
/* rgb */ color: rgb(39, 77, 176);
/* oklch */ color: oklch(45.4% 0.164 264.7);

Tailwind

colors: {
  custom: {
    50: '#777ec8',
    500: '#274db0',
    950: '#000000',
  },
}

SCSS

$custom: #274db0;
$custom-light: #777ec8;
$custom-dark: #000000;

JSON

{
  "hex": "#274db0",
  "rgb": {
    "r": 39,
    "g": 77,
    "b": 176
  },
  "hsl": {
    "h": 223.358,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.45435,
    "c": 0.16399,
    "h": 264.7
  },
  "luminance": 0.08874
}

Semantic roles & 50–950 ramp

primary

#274DB0

secondary

#C7AE6C

accent

#B941E7

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #274DB0

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

Preview Lab → · Contrast checker → · Palette generator →