#274DA1#274DA1

#274DA1 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.2% C 0.143 H 263.4°. Best body text is #FFFFFF at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#274DA1
RGB	rgb(39, 77, 161)
HSL	hsl(221, 61%, 39%)
HSV	hsv(221, 76%, 63%)
CMYK	cmyk(75.8%, 52.2%, 0%, 36.9%)
CIE-LAB	lab(34.62, 17.22, -49.45)
CIE-LCH	lch(34.62, 52.36, 289.20°)
OKLab	oklab(44.24% -0.0165 -0.1423)
OKLCH	oklch(44.24% 0.143 263.4)
XYZ	xyz(9.9213, 8.3112, 34.7926)
Luminance	0.0831 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#274DA1 #A17B27

analogous

#278AA1 #274DA1 #3E27A1

triadic

#274DA1 #A1274D #4DA127

tetradic

#274DA1 #A1278A #A17B27 #27A13E

square

#274DA1 #A1278A #A17B27 #27A13E

split-complementary

#274DA1 #A13E27 #8AA127

monochromatic

#0F1E3E #1B3570 #274DA1 #3766CE #688CDA

Accessibility & contrast

On white

7.89

#274DA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#274DA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #274DA1

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##274DA1	#FFFFFF	#000000	##FFFFFF
##274DA1	1.00	7.89	2.66	7.89
#FFFFFF	7.89	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1657A4

Deuteranopia (green-blind)

#004C9F

Tritanopia (blue-blind)

#00616F

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #274da1;
/* rgb */ color: rgb(39, 77, 161);
/* oklch */ color: oklch(44.2% 0.143 263.4);

Tailwind

colors: {
  custom: {
    50: '#737ebd',
    500: '#274da1',
    950: '#000000',
  },
}

SCSS

$custom: #274da1;
$custom-light: #737ebd;
$custom-dark: #000000;

JSON

{
  "hex": "#274da1",
  "rgb": {
    "r": 39,
    "g": 77,
    "b": 161
  },
  "hsl": {
    "h": 221.311,
    "s": 61,
    "l": 39.216
  },
  "oklch": {
    "l": 0.44239,
    "c": 0.14323,
    "h": 263.4
  },
  "luminance": 0.08312
}

Semantic roles & 50–950 ramp

primary

#274DA1

secondary

#C0A363

accent

#B244E4

background

#F7F7FB

surface

#EDEEF7

border

#C8C9D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #274DA1

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

Preview Lab → · Contrast checker → · Palette generator →