#273BA3#273BA3

#273BA3 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.8% C 0.169 H 269.0°. Best body text is #FFFFFF at 9.37:1 contrast (WCAG AA passes).

Color values

HEX	#273BA3
RGB	rgb(39, 59, 163)
HSL	hsl(230, 61%, 40%)
HSV	hsv(230, 76%, 64%)
CMYK	cmyk(76.1%, 63.8%, 0%, 36.1%)
CIE-LAB	lab(29.92, 30.05, -58.31)
CIE-LCH	lch(29.92, 65.60, 297.27°)
OKLab	oklab(40.76% -0.0031 -0.1686)
OKLCH	oklch(40.76% 0.169 269)
XYZ	xyz(9.0092, 6.2026, 35.3656)
Luminance	0.0620 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273BA3 #A38F27

analogous

#2779A3 #273BA3 #5127A3

triadic

#273BA3 #A3273B #3BA327

tetradic

#273BA3 #A32779 #A38F27 #27A351

square

#273BA3 #A32779 #A38F27 #27A351

split-complementary

#273BA3 #A35127 #79A327

monochromatic

#0F1740 #1B2972 #273BA3 #3850CF #697CDB

Accessibility & contrast

On white

9.37

#273BA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#273BA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273BA3

9.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273BA3	#FFFFFF	#000000	##FFFFFF
##273BA3	1.00	9.37	2.24	9.37
#FFFFFF	9.37	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA6

Deuteranopia (green-blind)

#0041A1

Tritanopia (blue-blind)

#005669

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #273ba3;
/* rgb */ color: rgb(39, 59, 163);
/* oklch */ color: oklch(40.8% 0.169 269.0);

Tailwind

colors: {
  custom: {
    50: '#7570bf',
    500: '#273ba3',
    950: '#000000',
  },
}

SCSS

$custom: #273ba3;
$custom-light: #7570bf;
$custom-dark: #000000;

JSON

{
  "hex": "#273ba3",
  "rgb": {
    "r": 39,
    "g": 59,
    "b": 163
  },
  "hsl": {
    "h": 230.323,
    "s": 61.386,
    "l": 39.608
  },
  "oklch": {
    "l": 0.40762,
    "c": 0.1686,
    "h": 269
  },
  "luminance": 0.06204
}

Semantic roles & 50–950 ramp

primary

#273BA3

secondary

#C1B264

accent

#CA43E4

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #273BA3

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

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