#273E9B#273E9B

#273E9B is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.6% C 0.154 H 268.1°. Best body text is #FFFFFF at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#273E9B
RGB	rgb(39, 62, 155)
HSL	hsl(228, 60%, 38%)
HSV	hsv(228, 75%, 61%)
CMYK	cmyk(74.8%, 60%, 0%, 39.2%)
CIE-LAB	lab(30.02, 25.02, -53.30)
CIE-LCH	lch(30.02, 58.89, 295.15°)
OKLab	oklab(40.62% -0.0051 -0.1538)
OKLCH	oklch(40.62% 0.154 268.1)
XYZ	xyz(8.4737, 6.2422, 31.7623)
Luminance	0.0624 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273E9B #9B8427

analogous

#27789B #273E9B #4A279B

triadic

#273E9B #9B273E #3E9B27

tetradic

#273E9B #9B2778 #9B8427 #279B4A

square

#273E9B #9B2778 #9B8427 #279B4A

split-complementary

#273E9B #9B4A27 #789B27

monochromatic

#0E1739 #1B2A6A #273E9B #3352CC #647BD8

Accessibility & contrast

On white

9.34

#273E9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#273E9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273E9B

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273E9B	#FFFFFF	#000000	##FFFFFF
##273E9B	1.00	9.34	2.25	9.34
#FFFFFF	9.34	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9E

Deuteranopia (green-blind)

#004199

Tritanopia (blue-blind)

#005566

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #273e9b;
/* rgb */ color: rgb(39, 62, 155);
/* oklch */ color: oklch(40.6% 0.154 268.1);

Tailwind

colors: {
  custom: {
    50: '#7273b9',
    500: '#273e9b',
    950: '#000000',
  },
}

SCSS

$custom: #273e9b;
$custom-light: #7273b9;
$custom-dark: #000000;

JSON

{
  "hex": "#273e9b",
  "rgb": {
    "r": 39,
    "g": 62,
    "b": 155
  },
  "hsl": {
    "h": 228.103,
    "s": 59.794,
    "l": 38.039
  },
  "oklch": {
    "l": 0.40622,
    "c": 0.15393,
    "h": 268.1
  },
  "luminance": 0.06243
}

Semantic roles & 50–950 ramp

primary

#273E9B

secondary

#BEAB60

accent

#C445E3

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #273E9B

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

Preview Lab → · Contrast checker → · Palette generator →