#273F8E#273F8E

#273F8E is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.7% C 0.134 H 267.2°. Best body text is #FFFFFF at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#273F8E
RGB	rgb(39, 63, 142)
HSL	hsl(226, 57%, 35%)
HSV	hsv(226, 73%, 56%)
CMYK	cmyk(72.5%, 55.6%, 0%, 44.3%)
CIE-LAB	lab(29.26, 19.34, -46.58)
CIE-LCH	lch(29.26, 50.44, 292.54°)
OKLab	oklab(39.73% -0.0065 -0.1341)
OKLCH	oklch(39.73% 0.134 267.2)
XYZ	xyz(7.4950, 5.9386, 26.3372)
Luminance	0.0594 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273F8E #8E7627

analogous

#27738E #273F8E #42278E

triadic

#273F8E #8E273F #3F8E27

tetradic

#273F8E #8E2773 #8E7627 #278E42

square

#273F8E #8E2773 #8E7627 #278E42

split-complementary

#273F8E #8E4227 #738E27

monochromatic

#0D142E #1A2A5E #273F8E #3454BE #5D78D2

Accessibility & contrast

On white

9.60

#273F8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#273F8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273F8E

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273F8E	#FFFFFF	#000000	##FFFFFF
##273F8E	1.00	9.60	2.19	9.60
#FFFFFF	9.60	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A91

Deuteranopia (green-blind)

#00408C

Tritanopia (blue-blind)

#005260

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #273f8e;
/* rgb */ color: rgb(39, 63, 142);
/* oklch */ color: oklch(39.7% 0.134 267.2);

Tailwind

colors: {
  custom: {
    50: '#6f73b0',
    500: '#273f8e',
    950: '#000000',
  },
}

SCSS

$custom: #273f8e;
$custom-light: #6f73b0;
$custom-dark: #000000;

JSON

{
  "hex": "#273f8e",
  "rgb": {
    "r": 39,
    "g": 63,
    "b": 142
  },
  "hsl": {
    "h": 226.019,
    "s": 56.906,
    "l": 35.49
  },
  "oklch": {
    "l": 0.39728,
    "c": 0.13425,
    "h": 267.2
  },
  "luminance": 0.05939
}

Semantic roles & 50–950 ramp

primary

#273F8E

secondary

#B8A259

accent

#BD48E0

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #273F8E

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

Preview Lab → · Contrast checker → · Palette generator →