#1F63A9#1F63A9

#1F63A9 is a mid, vivid cyan. Relative luminance 0.121; OKLCH L 49.5% C 0.130 H 252.7°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#1F63A9
RGB	rgb(31, 99, 169)
HSL	hsl(210, 69%, 39%)
HSV	hsv(210, 82%, 66%)
CMYK	cmyk(81.7%, 41.4%, 0%, 33.7%)
CIE-LAB	lab(41.34, 4.96, -43.44)
CIE-LCH	lch(41.34, 43.72, 276.52°)
OKLab	oklab(49.52% -0.0386 -0.1243)
OKLCH	oklch(49.52% 0.13 252.7)
XYZ	xyz(12.1856, 12.0781, 39.2175)
Luminance	0.1208 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F63A9 #A9651F

analogous

#1FA8A9 #1F63A9 #201FA9

triadic

#1F63A9 #A91F63 #63A91F

tetradic

#1F63A9 #A91FA8 #A9651F #1FA920

square

#1F63A9 #A91FA8 #A9651F #1FA920

split-complementary

#1F63A9 #A9201F #A8A91F

monochromatic

#0C2642 #164575 #1F63A9 #2D81D8 #60A0E2

Accessibility & contrast

On white

6.15

#1F63A9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#1F63A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F63A9

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F63A9	#FFFFFF	#000000	##FFFFFF
##1F63A9	1.00	6.15	3.42	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4168AC

Deuteranopia (green-blind)

#295CA8

Tritanopia (blue-blind)

#00747E

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #1f63a9;
/* rgb */ color: rgb(31, 99, 169);
/* oklch */ color: oklch(49.5% 0.130 252.7);

Tailwind

colors: {
  custom: {
    50: '#728ec3',
    500: '#1f63a9',
    950: '#000000',
  },
}

SCSS

$custom: #1f63a9;
$custom-light: #728ec3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f63a9",
  "rgb": {
    "r": 31,
    "g": 99,
    "b": 169
  },
  "hsl": {
    "h": 210.435,
    "s": 69,
    "l": 39.216
  },
  "oklch": {
    "l": 0.49515,
    "c": 0.13013,
    "h": 252.7
  },
  "luminance": 0.1208
}

Semantic roles & 50–950 ramp

primary

#1F63A9

secondary

#C7935D

accent

#953CEC

background

#F7F8FC

surface

#EDF0F8

border

#C8CBD1

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #1F63A9

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

Preview Lab → · Contrast checker → · Palette generator →