#155CCA#155CCA

#155CCA is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.2% C 0.184 H 259.8°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#155CCA
RGB	rgb(21, 92, 202)
HSL	hsl(216, 81%, 44%)
HSV	hsv(216, 90%, 79%)
CMYK	cmyk(89.6%, 54.5%, 0%, 20.8%)
CIE-LAB	lab(41.34, 21.81, -62.72)
CIE-LCH	lch(41.34, 66.41, 289.18°)
OKLab	oklab(50.16% -0.0325 -0.1812)
OKLCH	oklch(50.16% 0.184 259.8)
XYZ	xyz(14.7932, 12.0761, 57.4169)
Luminance	0.1208 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155CCA #CA8315

analogous

#15B6CA #155CCA #2815CA

triadic

#155CCA #CA155C #5CCA15

tetradic

#155CCA #CA15B6 #CA8315 #15CA28

square

#155CCA #CA15B6 #CA8315 #15CA28

split-complementary

#155CCA #CA2815 #B6CA15

monochromatic

#092A5B #0F4393 #155CCA #327AEA #6A9EEF

Accessibility & contrast

On white

6.15

#155CCA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#155CCA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #155CCA

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155CCA	#FFFFFF	#000000	##FFFFFF
##155CCA	1.00	6.15	3.42	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ACE

Deuteranopia (green-blind)

#005AC8

Tritanopia (blue-blind)

#00788A

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #155cca;
/* rgb */ color: rgb(21, 92, 202);
/* oklch */ color: oklch(50.2% 0.184 259.8);

Tailwind

colors: {
  custom: {
    50: '#7889db',
    500: '#155cca',
    950: '#000000',
  },
}

SCSS

$custom: #155cca;
$custom-light: #7889db;
$custom-dark: #000000;

JSON

{
  "hex": "#155cca",
  "rgb": {
    "r": 21,
    "g": 92,
    "b": 202
  },
  "hsl": {
    "h": 216.464,
    "s": 81.166,
    "l": 43.725
  },
  "oklch": {
    "l": 0.5016,
    "c": 0.18414,
    "h": 259.8
  },
  "luminance": 0.12078
}

Semantic roles & 50–950 ramp

primary

#155CCA

secondary

#D5A966

accent

#A930F8

background

#F8F8FD

surface

#EFEFFB

border

#CACAD4

text

#0B0B15

muted

#7C7C83

Preview Lab

Preview with #155CCA

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

Preview Lab → · Contrast checker → · Palette generator →