#273A7B#273A7B

#273A7B is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.1% C 0.113 H 268.2°. Best body text is #FFFFFF at 10.62:1 contrast (WCAG AA passes).

Color values

HEX	#273A7B
RGB	rgb(39, 58, 123)
HSL	hsl(226, 52%, 32%)
HSV	hsv(226, 68%, 48%)
CMYK	cmyk(68.3%, 52.8%, 0%, 51.8%)
CIE-LAB	lab(26.41, 15.44, -39.35)
CIE-LCH	lch(26.41, 42.27, 291.42°)
OKLab	oklab(37.13% -0.0035 -0.1129)
OKLCH	oklch(37.13% 0.113 268.2)
XYZ	xyz(5.9237, 4.8870, 19.3662)
Luminance	0.0489 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273A7B #7B6827

analogous

#27647B #273A7B #3E277B

triadic

#273A7B #7B273A #3A7B27

tetradic

#273A7B #7B2764 #7B6827 #277B3E

square

#273A7B #7B2764 #7B6827 #277B3E

split-complementary

#273A7B #7B3E27 #647B27

monochromatic

#0A0E1E #18244D #273A7B #3650A9 #546EC9

Accessibility & contrast

On white

10.62

#273A7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#273A7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273A7B

10.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273A7B	#FFFFFF	#000000	##FFFFFF
##273A7B	1.00	10.62	1.98	10.62
#FFFFFF	10.62	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14427D

Deuteranopia (green-blind)

#003B7A

Tritanopia (blue-blind)

#004954

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #273a7b;
/* rgb */ color: rgb(39, 58, 123);
/* oklch */ color: oklch(37.1% 0.113 268.2);

Tailwind

colors: {
  custom: {
    50: '#6b6fa2',
    500: '#273a7b',
    950: '#000000',
  },
}

SCSS

$custom: #273a7b;
$custom-light: #6b6fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#273a7b",
  "rgb": {
    "r": 39,
    "g": 58,
    "b": 123
  },
  "hsl": {
    "h": 226.429,
    "s": 51.852,
    "l": 31.765
  },
  "oklch": {
    "l": 0.37126,
    "c": 0.11294,
    "h": 268.2
  },
  "luminance": 0.04888
}

Semantic roles & 50–950 ramp

primary

#273A7B

secondary

#AD9851

accent

#BB4CDB

background

#F6F6FA

surface

#ECECF3

border

#C7C7CD

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #273A7B

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

Preview Lab → · Contrast checker → · Palette generator →