#1D63B3#1D63B3

#1D63B3 is a mid, vivid cyan. Relative luminance 0.124; OKLCH L 50.1% C 0.144 H 254.9°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#1D63B3
RGB	rgb(29, 99, 179)
HSL	hsl(212, 72%, 41%)
HSV	hsv(212, 84%, 70%)
CMYK	cmyk(83.8%, 44.7%, 0%, 29.8%)
CIE-LAB	lab(41.90, 8.70, -48.42)
CIE-LCH	lch(41.90, 49.20, 280.19°)
OKLab	oklab(50.14% -0.0374 -0.1389)
OKLCH	oklch(50.14% 0.144 254.9)
XYZ	xyz(13.1022, 12.4379, 44.3493)
Luminance	0.1244 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D63B3 #B36D1D

analogous

#1DAEB3 #1D63B3 #221DB3

triadic

#1D63B3 #B31D63 #63B31D

tetradic

#1D63B3 #B31DAE #B36D1D #1DB322

square

#1D63B3 #B31DAE #B36D1D #1DB322

split-complementary

#1D63B3 #B3221D #AEB31D

monochromatic

#0C294A #14467E #1D63B3 #3081DD #64A1E6

Accessibility & contrast

On white

6.02

#1D63B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#1D63B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D63B3

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D63B3	#FFFFFF	#000000	##FFFFFF
##1D63B3	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)

#396AB6

Deuteranopia (green-blind)

#185DB1

Tritanopia (blue-blind)

#007682

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #1d63b3;
/* rgb */ color: rgb(29, 99, 179);
/* oklch */ color: oklch(50.1% 0.144 254.9);

Tailwind

colors: {
  custom: {
    50: '#738eca',
    500: '#1d63b3',
    950: '#000000',
  },
}

SCSS

$custom: #1d63b3;
$custom-light: #738eca;
$custom-dark: #000000;

JSON

{
  "hex": "#1d63b3",
  "rgb": {
    "r": 29,
    "g": 99,
    "b": 179
  },
  "hsl": {
    "h": 212,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.50137,
    "c": 0.14387,
    "h": 254.9
  },
  "luminance": 0.1244
}

Semantic roles & 50–950 ramp

primary

#1D63B3

secondary

#CB9961

accent

#9A39EF

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #1D63B3

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

Preview Lab → · Contrast checker → · Palette generator →