#273DA7#273DA7

#273DA7 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.5% C 0.172 H 268.5°. Best body text is #FFFFFF at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#273DA7
RGB	rgb(39, 61, 167)
HSL	hsl(230, 62%, 40%)
HSV	hsv(230, 77%, 65%)
CMYK	cmyk(76.6%, 63.5%, 0%, 34.5%)
CIE-LAB	lab(30.78, 30.23, -59.31)
CIE-LCH	lch(30.78, 66.57, 297.01°)
OKLab	oklab(41.51% -0.0045 -0.1715)
OKLCH	oklch(41.51% 0.172 268.5)
XYZ	xyz(9.4781, 6.5578, 37.3180)
Luminance	0.0656 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273DA7 #A79127

analogous

#277DA7 #273DA7 #5127A7

triadic

#273DA7 #A7273D #3DA727

tetradic

#273DA7 #A7277D #A79127 #27A751

square

#273DA7 #A7277D #A79127 #27A751

split-complementary

#273DA7 #A75127 #7DA727

monochromatic

#101944 #1B2B75 #273DA7 #3A54D1 #6C7FDD

Accessibility & contrast

On white

9.08

#273DA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#273DA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273DA7

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273DA7	#FFFFFF	#000000	##FFFFFF
##273DA7	1.00	9.08	2.31	9.08
#FFFFFF	9.08	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FAA

Deuteranopia (green-blind)

#0043A5

Tritanopia (blue-blind)

#00596C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #273da7;
/* rgb */ color: rgb(39, 61, 167);
/* oklch */ color: oklch(41.5% 0.172 268.5);

Tailwind

colors: {
  custom: {
    50: '#7672c2',
    500: '#273da7',
    950: '#000000',
  },
}

SCSS

$custom: #273da7;
$custom-light: #7672c2;
$custom-dark: #000000;

JSON

{
  "hex": "#273da7",
  "rgb": {
    "r": 39,
    "g": 61,
    "b": 167
  },
  "hsl": {
    "h": 229.688,
    "s": 62.136,
    "l": 40.392
  },
  "oklch": {
    "l": 0.41505,
    "c": 0.17155,
    "h": 268.5
  },
  "luminance": 0.06559
}

Semantic roles & 50–950 ramp

primary

#273DA7

secondary

#C3B367

accent

#C943E5

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #273DA7

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

Preview Lab → · Contrast checker → · Palette generator →