#273D9E#273D9E

#273D9E is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.7% C 0.159 H 268.4°. Best body text is #FFFFFF at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#273D9E
RGB	rgb(39, 61, 158)
HSL	hsl(229, 60%, 39%)
HSV	hsv(229, 75%, 62%)
CMYK	cmyk(75.3%, 61.4%, 0%, 38%)
CIE-LAB	lab(30.00, 26.84, -55.15)
CIE-LCH	lch(30.00, 61.33, 295.95°)
OKLab	oklab(40.69% -0.0043 -0.1593)
OKLCH	oklch(40.69% 0.159 268.4)
XYZ	xyz(8.6749, 6.2365, 33.0877)
Luminance	0.0624 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273D9E #9E8827

analogous

#27789E #273D9E #4D279E

triadic

#273D9E #9E273D #3D9E27

tetradic

#273D9E #9E2778 #9E8827 #279E4D

square

#273D9E #9E2778 #9E8827 #279E4D

split-complementary

#273D9E #9E4D27 #789E27

monochromatic

#0F173C #1B2A6D #273D9E #3551CD #667BD9

Accessibility & contrast

On white

9.34

#273D9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#273D9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273D9E

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273D9E	#FFFFFF	#000000	##FFFFFF
##273D9E	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)

#004CA1

Deuteranopia (green-blind)

#00419C

Tritanopia (blue-blind)

#005667

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #273d9e;
/* rgb */ color: rgb(39, 61, 158);
/* oklch */ color: oklch(40.7% 0.159 268.4);

Tailwind

colors: {
  custom: {
    50: '#7372bb',
    500: '#273d9e',
    950: '#000000',
  },
}

SCSS

$custom: #273d9e;
$custom-light: #7372bb;
$custom-dark: #000000;

JSON

{
  "hex": "#273d9e",
  "rgb": {
    "r": 39,
    "g": 61,
    "b": 158
  },
  "hsl": {
    "h": 228.908,
    "s": 60.406,
    "l": 38.627
  },
  "oklch": {
    "l": 0.40689,
    "c": 0.15934,
    "h": 268.4
  },
  "luminance": 0.06237
}

Semantic roles & 50–950 ramp

primary

#273D9E

secondary

#BFAE62

accent

#C644E4

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #273D9E

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

Preview Lab → · Contrast checker → · Palette generator →