#274EA3#274EA3

#274EA3 is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.6% C 0.145 H 263.2°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#274EA3
RGB	rgb(39, 78, 163)
HSL	hsl(221, 61%, 40%)
HSV	hsv(221, 76%, 64%)
CMYK	cmyk(76.1%, 52.1%, 0%, 36.1%)
CIE-LAB	lab(35.05, 17.33, -49.96)
CIE-LCH	lch(35.05, 52.88, 289.13°)
OKLab	oklab(44.61% -0.0171 -0.1438)
OKLCH	oklch(44.61% 0.145 263.2)
XYZ	xyz(10.1696, 8.5233, 35.7524)
Luminance	0.0852 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#274EA3 #A37C27

analogous

#278CA3 #274EA3 #3E27A3

triadic

#274EA3 #A3274E #4EA327

tetradic

#274EA3 #A3278C #A37C27 #27A33E

square

#274EA3 #A3278C #A37C27 #27A33E

split-complementary

#274EA3 #A33E27 #8CA327

monochromatic

#0F1F40 #1B3672 #274EA3 #3867CF #698DDB

Accessibility & contrast

On white

7.76

#274EA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#274EA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #274EA3

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##274EA3	#FFFFFF	#000000	##FFFFFF
##274EA3	1.00	7.76	2.70	7.76
#FFFFFF	7.76	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1658A6

Deuteranopia (green-blind)

#004DA1

Tritanopia (blue-blind)

#006271

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #274ea3;
/* rgb */ color: rgb(39, 78, 163);
/* oklch */ color: oklch(44.6% 0.145 263.2);

Tailwind

colors: {
  custom: {
    50: '#737fbf',
    500: '#274ea3',
    950: '#000000',
  },
}

SCSS

$custom: #274ea3;
$custom-light: #737fbf;
$custom-dark: #000000;

JSON

{
  "hex": "#274ea3",
  "rgb": {
    "r": 39,
    "g": 78,
    "b": 163
  },
  "hsl": {
    "h": 221.129,
    "s": 61.386,
    "l": 39.608
  },
  "oklch": {
    "l": 0.44609,
    "c": 0.14477,
    "h": 263.2
  },
  "luminance": 0.08524
}

Semantic roles & 50–950 ramp

primary

#274EA3

secondary

#C1A464

accent

#B243E4

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #274EA3

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

Preview Lab → · Contrast checker → · Palette generator →