#274F8B#274F8B

#274F8B is a dark, moderate blue. Relative luminance 0.079; OKLCH L 43.1% C 0.109 H 258.4°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#274F8B
RGB	rgb(39, 79, 139)
HSL	hsl(216, 56%, 35%)
HSV	hsv(216, 72%, 55%)
CMYK	cmyk(71.9%, 43.2%, 0%, 45.5%)
CIE-LAB	lab(33.75, 7.33, -37.52)
CIE-LCH	lch(33.75, 38.23, 281.05°)
OKLab	oklab(43.1% -0.022 -0.1071)
OKLCH	oklch(43.1% 0.109 258.4)
XYZ	xyz(8.2912, 7.8865, 25.5064)
Luminance	0.0789 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#274F8B #8B6327

analogous

#27818B #274F8B #31278B

triadic

#274F8B #8B274F #4F8B27

tetradic

#274F8B #8B2781 #8B6327 #278B31

square

#274F8B #8B2781 #8B6327 #278B31

split-complementary

#274F8B #8B3127 #818B27

monochromatic

#0C192B #1A345B #274F8B #346ABB #5B8AD1

Accessibility & contrast

On white

8.15

#274F8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#274F8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #274F8B

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##274F8B	#FFFFFF	#000000	##FFFFFF
##274F8B	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#32548D

Deuteranopia (green-blind)

#224B8A

Tritanopia (blue-blind)

#005D66

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #274f8b;
/* rgb */ color: rgb(39, 79, 139);
/* oklch */ color: oklch(43.1% 0.109 258.4);

Tailwind

colors: {
  custom: {
    50: '#6e7fad',
    500: '#274f8b',
    950: '#000000',
  },
}

SCSS

$custom: #274f8b;
$custom-light: #6e7fad;
$custom-dark: #000000;

JSON

{
  "hex": "#274f8b",
  "rgb": {
    "r": 39,
    "g": 79,
    "b": 139
  },
  "hsl": {
    "h": 216,
    "s": 56.18,
    "l": 34.902
  },
  "oklch": {
    "l": 0.43095,
    "c": 0.10938,
    "h": 258.4
  },
  "luminance": 0.07887
}

Semantic roles & 50–950 ramp

primary

#274F8B

secondary

#B69058

accent

#A348DF

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #274F8B

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

Preview Lab → · Contrast checker → · Palette generator →