#1F63A8#1F63A8

#1F63A8 is a mid, vivid cyan. Relative luminance 0.120; OKLCH L 49.4% C 0.129 H 252.4°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#1F63A8
RGB	rgb(31, 99, 168)
HSL	hsl(210, 69%, 39%)
HSV	hsv(210, 82%, 66%)
CMYK	cmyk(81.5%, 41.1%, 0%, 34.1%)
CIE-LAB	lab(41.28, 4.57, -42.94)
CIE-LCH	lch(41.28, 43.18, 276.08°)
OKLab	oklab(49.45% -0.0388 -0.1228)
OKLCH	oklch(49.45% 0.129 252.4)
XYZ	xyz(12.0921, 12.0407, 38.7250)
Luminance	0.1204 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F63A8 #A8641F

analogous

#1FA8A8 #1F63A8 #201FA8

triadic

#1F63A8 #A81F63 #63A81F

tetradic

#1F63A8 #A81FA8 #A8641F #1FA820

square

#1F63A8 #A81FA8 #A8641F #1FA820

split-complementary

#1F63A8 #A8201F #A8A81F

monochromatic

#0C2641 #154574 #1F63A8 #2C81D8 #60A0E2

Accessibility & contrast

On white

6.16

#1F63A8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#1F63A8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F63A8

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F63A8	#FFFFFF	#000000	##FFFFFF
##1F63A8	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4168AB

Deuteranopia (green-blind)

#2A5CA7

Tritanopia (blue-blind)

#00737D

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #1f63a8;
/* rgb */ color: rgb(31, 99, 168);
/* oklch */ color: oklch(49.4% 0.129 252.4);

Tailwind

colors: {
  custom: {
    50: '#718ec2',
    500: '#1f63a8',
    950: '#000000',
  },
}

SCSS

$custom: #1f63a8;
$custom-light: #718ec2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f63a8",
  "rgb": {
    "r": 31,
    "g": 99,
    "b": 168
  },
  "hsl": {
    "h": 210.219,
    "s": 68.844,
    "l": 39.02
  },
  "oklch": {
    "l": 0.49449,
    "c": 0.12881,
    "h": 252.4
  },
  "luminance": 0.12042
}

Semantic roles & 50–950 ramp

primary

#1F63A8

secondary

#C6925D

accent

#953CEC

background

#F7F8FC

surface

#EDF0F8

border

#C8CBD1

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #1F63A8

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

Preview Lab → · Contrast checker → · Palette generator →