#1863B3#1863B3

#1863B3 is a mid, vivid cyan. Relative luminance 0.124; OKLCH L 50.0% C 0.145 H 254.2°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#1863B3
RGB	rgb(24, 99, 179)
HSL	hsl(211, 76%, 40%)
HSV	hsv(211, 87%, 70%)
CMYK	cmyk(86.6%, 44.7%, 0%, 29.8%)
CIE-LAB	lab(41.80, 8.29, -48.59)
CIE-LCH	lch(41.80, 49.30, 279.69°)
OKLab	oklab(50.03% -0.0396 -0.1395)
OKLCH	oklch(50.03% 0.145 254.2)
XYZ	xyz(12.9721, 12.3709, 44.3432)
Luminance	0.1237 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1863B3 #B36818

analogous

#18B0B3 #1863B3 #1B18B3

triadic

#1863B3 #B31863 #63B318

tetradic

#1863B3 #B318B0 #B36818 #18B31B

square

#1863B3 #B318B0 #B36818 #18B31B

split-complementary

#1863B3 #B31B18 #B0B318

monochromatic

#0A2747 #11457D #1863B3 #2681E2 #5CA0E9

Accessibility & contrast

On white

6.04

#1863B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#1863B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1863B3

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1863B3	#FFFFFF	#000000	##FFFFFF
##1863B3	1.00	6.04	3.47	6.04
#FFFFFF	6.04	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#396AB6

Deuteranopia (green-blind)

#165CB1

Tritanopia (blue-blind)

#007682

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #1863b3;
/* rgb */ color: rgb(24, 99, 179);
/* oklch */ color: oklch(50.0% 0.145 254.2);

Tailwind

colors: {
  custom: {
    50: '#728eca',
    500: '#1863b3',
    950: '#000000',
  },
}

SCSS

$custom: #1863b3;
$custom-light: #728eca;
$custom-dark: #000000;

JSON

{
  "hex": "#1863b3",
  "rgb": {
    "r": 24,
    "g": 99,
    "b": 179
  },
  "hsl": {
    "h": 210.968,
    "s": 76.355,
    "l": 39.804
  },
  "oklch": {
    "l": 0.50026,
    "c": 0.14499,
    "h": 254.2
  },
  "luminance": 0.12373
}

Semantic roles & 50–950 ramp

primary

#1863B3

secondary

#CD955A

accent

#9735F3

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#090C13

muted

#7B7D82

Preview Lab

Preview with #1863B3

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

Preview Lab → · Contrast checker → · Palette generator →