#274F8A#274F8A

#274F8A is a dark, moderate blue. Relative luminance 0.079; OKLCH L 43.0% C 0.108 H 258.1°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#274F8A
RGB	rgb(39, 79, 138)
HSL	hsl(216, 56%, 35%)
HSV	hsv(216, 72%, 54%)
CMYK	cmyk(71.7%, 42.8%, 0%, 45.9%)
CIE-LAB	lab(33.68, 6.94, -37.01)
CIE-LCH	lch(33.68, 37.65, 280.63°)
OKLab	oklab(43.03% -0.0222 -0.1056)
OKLCH	oklch(43.03% 0.108 258.1)
XYZ	xyz(8.2185, 7.8574, 25.1233)
Luminance	0.0786 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#274F8A #8A6227

analogous

#27808A #274F8A #31278A

triadic

#274F8A #8A274F #4F8A27

tetradic

#274F8A #8A2780 #8A6227 #278A31

square

#274F8A #8A2780 #8A6227 #278A31

split-complementary

#274F8A #8A3127 #808A27

monochromatic

#0C182B #1A345A #274F8A #346ABA #5B8AD1

Accessibility & contrast

On white

8.17

#274F8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#274F8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #274F8A

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##274F8A	#FFFFFF	#000000	##FFFFFF
##274F8A	1.00	8.17	2.57	8.17
#FFFFFF	8.17	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#33548C

Deuteranopia (green-blind)

#234B89

Tritanopia (blue-blind)

#005D65

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #274f8a;
/* rgb */ color: rgb(39, 79, 138);
/* oklch */ color: oklch(43.0% 0.108 258.1);

Tailwind

colors: {
  custom: {
    50: '#6e7fac',
    500: '#274f8a',
    950: '#000000',
  },
}

SCSS

$custom: #274f8a;
$custom-light: #6e7fac;
$custom-dark: #000000;

JSON

{
  "hex": "#274f8a",
  "rgb": {
    "r": 39,
    "g": 79,
    "b": 138
  },
  "hsl": {
    "h": 215.758,
    "s": 55.932,
    "l": 34.706
  },
  "oklch": {
    "l": 0.43028,
    "c": 0.10794,
    "h": 258.1
  },
  "luminance": 0.07858
}

Semantic roles & 50–950 ramp

primary

#274F8A

secondary

#B68F57

accent

#A249DF

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #274F8A

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

Preview Lab → · Contrast checker → · Palette generator →