#155ECA#155ECA

#155ECA is a mid, vivid blue. Relative luminance 0.124; OKLCH L 50.6% C 0.182 H 259.3°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#155ECA
RGB	rgb(21, 94, 202)
HSL	hsl(216, 81%, 44%)
HSV	hsv(216, 90%, 79%)
CMYK	cmyk(89.6%, 53.5%, 0%, 20.8%)
CIE-LAB	lab(41.89, 20.50, -61.83)
CIE-LCH	lch(41.89, 65.14, 288.34°)
OKLab	oklab(50.58% -0.0337 -0.1786)
OKLCH	oklch(50.58% 0.182 259.3)
XYZ	xyz(14.9687, 12.4271, 57.4754)
Luminance	0.1243 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155ECA #CA8115

analogous

#15B8CA #155ECA #2615CA

triadic

#155ECA #CA155E #5ECA15

tetradic

#155ECA #CA15B8 #CA8115 #15CA26

square

#155ECA #CA15B8 #CA8115 #15CA26

split-complementary

#155ECA #CA2615 #B8CA15

monochromatic

#092A5B #0F4493 #155ECA #327CEA #6AA0EF

Accessibility & contrast

On white

6.02

#155ECA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#155ECA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #155ECA

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155ECA	#FFFFFF	#000000	##FFFFFF
##155ECA	1.00	6.02	3.49	6.02
#FFFFFF	6.02	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BCE

Deuteranopia (green-blind)

#005BC8

Tritanopia (blue-blind)

#00798B

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #155eca;
/* rgb */ color: rgb(21, 94, 202);
/* oklch */ color: oklch(50.6% 0.182 259.3);

Tailwind

colors: {
  custom: {
    50: '#788adb',
    500: '#155eca',
    950: '#000000',
  },
}

SCSS

$custom: #155eca;
$custom-light: #788adb;
$custom-dark: #000000;

JSON

{
  "hex": "#155eca",
  "rgb": {
    "r": 21,
    "g": 94,
    "b": 202
  },
  "hsl": {
    "h": 215.801,
    "s": 81.166,
    "l": 43.725
  },
  "oklch": {
    "l": 0.50578,
    "c": 0.18172,
    "h": 259.3
  },
  "luminance": 0.12429
}

Semantic roles & 50–950 ramp

primary

#155ECA

secondary

#D5A866

accent

#A730F8

background

#F8F8FD

surface

#EFF0FB

border

#CACBD4

text

#0B0B15

muted

#7C7C83

Preview Lab

Preview with #155ECA

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

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