#273C7B#273C7B

#273C7B is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.6% C 0.110 H 267.1°. Best body text is #FFFFFF at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#273C7B
RGB	rgb(39, 60, 123)
HSL	hsl(225, 52%, 32%)
HSV	hsv(225, 68%, 48%)
CMYK	cmyk(68.3%, 51.2%, 0%, 51.8%)
CIE-LAB	lab(27.00, 14.05, -38.41)
CIE-LCH	lch(27.00, 40.90, 290.09°)
OKLab	oklab(37.57% -0.0055 -0.1101)
OKLCH	oklch(37.57% 0.11 267.1)
XYZ	xyz(6.0265, 5.0925, 19.4004)
Luminance	0.0509 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273C7B #7B6627

analogous

#27667B #273C7B #3C277B

triadic

#273C7B #7B273C #3C7B27

tetradic

#273C7B #7B2766 #7B6627 #277B3C

square

#273C7B #7B2766 #7B6627 #277B3C

split-complementary

#273C7B #7B3C27 #667B27

monochromatic

#0A0F1E #18254D #273C7B #3653A9 #5471C9

Accessibility & contrast

On white

10.40

#273C7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#273C7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273C7B

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273C7B	#FFFFFF	#000000	##FFFFFF
##273C7B	1.00	10.40	2.02	10.40
#FFFFFF	10.40	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A447D

Deuteranopia (green-blind)

#043C7A

Tritanopia (blue-blind)

#004B55

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #273c7b;
/* rgb */ color: rgb(39, 60, 123);
/* oklch */ color: oklch(37.6% 0.110 267.1);

Tailwind

colors: {
  custom: {
    50: '#6b71a2',
    500: '#273c7b',
    950: '#000000',
  },
}

SCSS

$custom: #273c7b;
$custom-light: #6b71a2;
$custom-dark: #000000;

JSON

{
  "hex": "#273c7b",
  "rgb": {
    "r": 39,
    "g": 60,
    "b": 123
  },
  "hsl": {
    "h": 225,
    "s": 51.852,
    "l": 31.765
  },
  "oklch": {
    "l": 0.37572,
    "c": 0.11022,
    "h": 267.1
  },
  "luminance": 0.05093
}

Semantic roles & 50–950 ramp

primary

#273C7B

secondary

#AD9651

accent

#B84CDB

background

#F6F6FA

surface

#ECECF3

border

#C7C7CD

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #273C7B

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

Preview Lab → · Contrast checker → · Palette generator →