#274D8B#274D8B

#274D8B is a dark, moderate blue. Relative luminance 0.076; OKLCH L 42.6% C 0.112 H 259.7°. Best body text is #FFFFFF at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#274D8B
RGB	rgb(39, 77, 139)
HSL	hsl(217, 56%, 35%)
HSV	hsv(217, 72%, 55%)
CMYK	cmyk(71.9%, 44.6%, 0%, 45.5%)
CIE-LAB	lab(33.14, 8.66, -38.49)
CIE-LCH	lch(33.14, 39.45, 282.68°)
OKLab	oklab(42.63% -0.02 -0.11)
OKLCH	oklch(42.63% 0.112 259.7)
XYZ	xyz(8.1491, 7.6023, 25.4590)
Luminance	0.0760 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#274D8B #8B6527

analogous

#277F8B #274D8B #33278B

triadic

#274D8B #8B274D #4D8B27

tetradic

#274D8B #8B277F #8B6527 #278B33

square

#274D8B #8B277F #8B6527 #278B33

split-complementary

#274D8B #8B3327 #7F8B27

monochromatic

#0C182B #1A335B #274D8B #3467BB #5B88D1

Accessibility & contrast

On white

8.33

#274D8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#274D8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #274D8B

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##274D8B	#FFFFFF	#000000	##FFFFFF
##274D8B	1.00	8.33	2.52	8.33
#FFFFFF	8.33	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F538D

Deuteranopia (green-blind)

#1D4A8A

Tritanopia (blue-blind)

#005B65

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #274d8b;
/* rgb */ color: rgb(39, 77, 139);
/* oklch */ color: oklch(42.6% 0.112 259.7);

Tailwind

colors: {
  custom: {
    50: '#6e7ead',
    500: '#274d8b',
    950: '#000000',
  },
}

SCSS

$custom: #274d8b;
$custom-light: #6e7ead;
$custom-dark: #000000;

JSON

{
  "hex": "#274d8b",
  "rgb": {
    "r": 39,
    "g": 77,
    "b": 139
  },
  "hsl": {
    "h": 217.2,
    "s": 56.18,
    "l": 34.902
  },
  "oklch": {
    "l": 0.42627,
    "c": 0.11183,
    "h": 259.7
  },
  "luminance": 0.07603
}

Semantic roles & 50–950 ramp

primary

#274D8B

secondary

#B69258

accent

#A648DF

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080910

muted

#7B7B7F

Preview Lab

Preview with #274D8B

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

Preview Lab → · Contrast checker → · Palette generator →