#274E8B#274E8B

#274E8B is a dark, moderate blue. Relative luminance 0.077; OKLCH L 42.9% C 0.111 H 259.1°. Best body text is #FFFFFF at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#274E8B
RGB	rgb(39, 78, 139)
HSL	hsl(217, 56%, 35%)
HSV	hsv(217, 72%, 55%)
CMYK	cmyk(71.9%, 43.9%, 0%, 45.5%)
CIE-LAB	lab(33.44, 8.00, -38.01)
CIE-LCH	lch(33.44, 38.84, 281.88°)
OKLab	oklab(42.86% -0.021 -0.1086)
OKLCH	oklch(42.86% 0.111 259.1)
XYZ	xyz(8.2196, 7.7433, 25.4825)
Luminance	0.0774 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#274E8B #8B6427

analogous

#27808B #274E8B #32278B

triadic

#274E8B #8B274E #4E8B27

tetradic

#274E8B #8B2780 #8B6427 #278B32

square

#274E8B #8B2780 #8B6427 #278B32

split-complementary

#274E8B #8B3227 #808B27

monochromatic

#0C182B #1A335B #274E8B #3469BB #5B89D1

Accessibility & contrast

On white

8.24

#274E8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#274E8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #274E8B

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##274E8B	#FFFFFF	#000000	##FFFFFF
##274E8B	1.00	8.24	2.55	8.24
#FFFFFF	8.24	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#31548D

Deuteranopia (green-blind)

#204A8A

Tritanopia (blue-blind)

#005C65

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #274e8b;
/* rgb */ color: rgb(39, 78, 139);
/* oklch */ color: oklch(42.9% 0.111 259.1);

Tailwind

colors: {
  custom: {
    50: '#6e7fad',
    500: '#274e8b',
    950: '#000000',
  },
}

SCSS

$custom: #274e8b;
$custom-light: #6e7fad;
$custom-dark: #000000;

JSON

{
  "hex": "#274e8b",
  "rgb": {
    "r": 39,
    "g": 78,
    "b": 139
  },
  "hsl": {
    "h": 216.6,
    "s": 56.18,
    "l": 34.902
  },
  "oklch": {
    "l": 0.42861,
    "c": 0.11059,
    "h": 259.1
  },
  "luminance": 0.07744
}

Semantic roles & 50–950 ramp

primary

#274E8B

secondary

#B69158

accent

#A548DF

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #274E8B

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

Preview Lab → · Contrast checker → · Palette generator →