#273A78#273A78

#273A78 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.9% C 0.108 H 268.0°. Best body text is #FFFFFF at 10.70:1 contrast (WCAG AA passes).

Color values

HEX	#273A78
RGB	rgb(39, 58, 120)
HSL	hsl(226, 51%, 31%)
HSV	hsv(226, 68%, 47%)
CMYK	cmyk(67.5%, 51.7%, 0%, 52.9%)
CIE-LAB	lab(26.20, 14.28, -37.81)
CIE-LCH	lch(26.20, 40.41, 290.69°)
OKLab	oklab(36.89% -0.0039 -0.1083)
OKLCH	oklch(36.89% 0.108 268)
XYZ	xyz(5.7388, 4.8130, 18.3922)
Luminance	0.0481 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273A78 #786527

analogous

#276278 #273A78 #3C2778

triadic

#273A78 #78273A #3A7827

tetradic

#273A78 #782762 #786527 #27783C

square

#273A78 #782762 #786527 #27783C

split-complementary

#273A78 #783C27 #627827

monochromatic

#090D1C #18244A #273A78 #3650A6 #526EC7

Accessibility & contrast

On white

10.70

#273A78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#273A78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273A78

10.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273A78	#FFFFFF	#000000	##FFFFFF
##273A78	1.00	10.70	1.96	10.70
#FFFFFF	10.70	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#18427A

Deuteranopia (green-blind)

#033B77

Tritanopia (blue-blind)

#004853

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #273a78;
/* rgb */ color: rgb(39, 58, 120);
/* oklch */ color: oklch(36.9% 0.108 268.0);

Tailwind

colors: {
  custom: {
    50: '#6b6f9f',
    500: '#273a78',
    950: '#000000',
  },
}

SCSS

$custom: #273a78;
$custom-light: #6b6f9f;
$custom-dark: #000000;

JSON

{
  "hex": "#273a78",
  "rgb": {
    "r": 39,
    "g": 58,
    "b": 120
  },
  "hsl": {
    "h": 225.926,
    "s": 50.943,
    "l": 31.176
  },
  "oklch": {
    "l": 0.36894,
    "c": 0.10841,
    "h": 268
  },
  "luminance": 0.04814
}

Semantic roles & 50–950 ramp

primary

#273A78

secondary

#AA9551

accent

#B94DDA

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #273A78

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

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