#1863B4#1863B4

#1863B4 is a mid, vivid cyan. Relative luminance 0.124; OKLCH L 50.1% C 0.146 H 254.4°. Best body text is #FFFFFF at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#1863B4
RGB	rgb(24, 99, 180)
HSL	hsl(211, 76%, 40%)
HSV	hsv(211, 87%, 71%)
CMYK	cmyk(86.7%, 45%, 0%, 29.4%)
CIE-LAB	lab(41.86, 8.69, -49.08)
CIE-LCH	lch(41.86, 49.84, 280.04°)
OKLab	oklab(50.1% -0.0394 -0.1409)
OKLCH	oklch(50.1% 0.146 254.4)
XYZ	xyz(13.0736, 12.4115, 44.8778)
Luminance	0.1241 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1863B4 #B46918

analogous

#18B1B4 #1863B4 #1B18B4

triadic

#1863B4 #B41863 #63B418

tetradic

#1863B4 #B418B1 #B46918 #18B41B

square

#1863B4 #B418B1 #B46918 #18B41B

split-complementary

#1863B4 #B41B18 #B1B418

monochromatic

#0A2848 #11457E #1863B4 #2781E2 #5DA0E9

Accessibility & contrast

On white

6.03

#1863B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#1863B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1863B4

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1863B4	#FFFFFF	#000000	##FFFFFF
##1863B4	1.00	6.03	3.48	6.03
#FFFFFF	6.03	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#386AB7

Deuteranopia (green-blind)

#135CB2

Tritanopia (blue-blind)

#007682

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #1863b4;
/* rgb */ color: rgb(24, 99, 180);
/* oklch */ color: oklch(50.1% 0.146 254.4);

Tailwind

colors: {
  custom: {
    50: '#738ecb',
    500: '#1863b4',
    950: '#000000',
  },
}

SCSS

$custom: #1863b4;
$custom-light: #738ecb;
$custom-dark: #000000;

JSON

{
  "hex": "#1863b4",
  "rgb": {
    "r": 24,
    "g": 99,
    "b": 180
  },
  "hsl": {
    "h": 211.154,
    "s": 76.471,
    "l": 40
  },
  "oklch": {
    "l": 0.50096,
    "c": 0.1463,
    "h": 254.4
  },
  "luminance": 0.12413
}

Semantic roles & 50–950 ramp

primary

#1863B4

secondary

#CD965B

accent

#9835F3

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #1863B4

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

Preview Lab → · Contrast checker → · Palette generator →