#1F63AA#1F63AA

#1F63AA is a mid, vivid cyan. Relative luminance 0.121; OKLCH L 49.6% C 0.131 H 253.0°. Best body text is #FFFFFF at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#1F63AA
RGB	rgb(31, 99, 170)
HSL	hsl(211, 69%, 39%)
HSV	hsv(211, 82%, 67%)
CMYK	cmyk(81.8%, 41.8%, 0%, 33.3%)
CIE-LAB	lab(41.40, 5.36, -43.93)
CIE-LCH	lch(41.40, 44.26, 276.95°)
OKLab	oklab(49.58% -0.0384 -0.1257)
OKLCH	oklch(49.58% 0.131 253)
XYZ	xyz(12.2799, 12.1158, 39.7138)
Luminance	0.1212 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F63AA #AA661F

analogous

#1FA9AA #1F63AA #201FAA

triadic

#1F63AA #AA1F63 #63AA1F

tetradic

#1F63AA #AA1FA9 #AA661F #1FAA20

square

#1F63AA #AA1FA9 #AA661F #1FAA20

split-complementary

#1F63AA #AA201F #A9AA1F

monochromatic

#0C2742 #164576 #1F63AA #2D81D9 #61A0E2

Accessibility & contrast

On white

6.13

#1F63AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#1F63AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F63AA

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F63AA	#FFFFFF	#000000	##FFFFFF
##1F63AA	1.00	6.13	3.42	6.13
#FFFFFF	6.13	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4068AD

Deuteranopia (green-blind)

#285CA9

Tritanopia (blue-blind)

#00747E

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #1f63aa;
/* rgb */ color: rgb(31, 99, 170);
/* oklch */ color: oklch(49.6% 0.131 253.0);

Tailwind

colors: {
  custom: {
    50: '#728ec4',
    500: '#1f63aa',
    950: '#000000',
  },
}

SCSS

$custom: #1f63aa;
$custom-light: #728ec4;
$custom-dark: #000000;

JSON

{
  "hex": "#1f63aa",
  "rgb": {
    "r": 31,
    "g": 99,
    "b": 170
  },
  "hsl": {
    "h": 210.647,
    "s": 69.154,
    "l": 39.412
  },
  "oklch": {
    "l": 0.49581,
    "c": 0.13144,
    "h": 253
  },
  "luminance": 0.12117
}

Semantic roles & 50–950 ramp

primary

#1F63AA

secondary

#C7945E

accent

#963CEC

background

#F7F8FC

surface

#EDF0F8

border

#C8CBD1

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #1F63AA

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

Preview Lab → · Contrast checker → · Palette generator →