#1F64A9#1F64A9

#1F64A9 is a mid, vivid cyan. Relative luminance 0.123; OKLCH L 49.7% C 0.129 H 252.2°. Best body text is #FFFFFF at 6.08:1 contrast (WCAG AA passes).

Color values

HEX	#1F64A9
RGB	rgb(31, 100, 169)
HSL	hsl(210, 69%, 39%)
HSV	hsv(210, 82%, 66%)
CMYK	cmyk(81.7%, 40.8%, 0%, 33.7%)
CIE-LAB	lab(41.64, 4.33, -42.96)
CIE-LCH	lch(41.64, 43.18, 275.75°)
OKLab	oklab(49.75% -0.0395 -0.1228)
OKLCH	oklch(49.75% 0.129 252.2)
XYZ	xyz(12.2810, 12.2687, 39.2493)
Luminance	0.1227 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F64A9 #A9641F

analogous

#1FA9A9 #1F64A9 #1F1FA9

triadic

#1F64A9 #A91F64 #64A91F

tetradic

#1F64A9 #A91FA9 #A9641F #1FA91F

square

#1F64A9 #A91FA9 #A9641F #1FA91F

split-complementary

#1F64A9 #A91F1F #A9A91F

monochromatic

#0C2742 #164575 #1F64A9 #2D83D8 #60A1E2

Accessibility & contrast

On white

6.08

#1F64A9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#1F64A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F64A9

6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F64A9	#FFFFFF	#000000	##FFFFFF
##1F64A9	1.00	6.08	3.45	6.08
#FFFFFF	6.08	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4269AC

Deuteranopia (green-blind)

#2B5DA8

Tritanopia (blue-blind)

#00747E

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #1f64a9;
/* rgb */ color: rgb(31, 100, 169);
/* oklch */ color: oklch(49.7% 0.129 252.2);

Tailwind

colors: {
  custom: {
    50: '#728fc3',
    500: '#1f64a9',
    950: '#000000',
  },
}

SCSS

$custom: #1f64a9;
$custom-light: #728fc3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f64a9",
  "rgb": {
    "r": 31,
    "g": 100,
    "b": 169
  },
  "hsl": {
    "h": 210,
    "s": 69,
    "l": 39.216
  },
  "oklch": {
    "l": 0.49749,
    "c": 0.12902,
    "h": 252.2
  },
  "luminance": 0.1227
}

Semantic roles & 50–950 ramp

primary

#1F64A9

secondary

#C7925D

accent

#943CEC

background

#F7F8FC

surface

#EDF0F8

border

#C8CBD1

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #1F64A9

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

Preview Lab → · Contrast checker → · Palette generator →