#1F64A8#1F64A8

#1F64A8 is a mid, vivid cyan. Relative luminance 0.122; OKLCH L 49.7% C 0.128 H 251.9°. Best body text is #FFFFFF at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#1F64A8
RGB	rgb(31, 100, 168)
HSL	hsl(210, 69%, 39%)
HSV	hsv(210, 82%, 66%)
CMYK	cmyk(81.5%, 40.5%, 0%, 34.1%)
CIE-LAB	lab(41.58, 3.94, -42.46)
CIE-LCH	lch(41.58, 42.64, 275.30°)
OKLab	oklab(49.68% -0.0397 -0.1214)
OKLCH	oklch(49.68% 0.128 251.9)
XYZ	xyz(12.1875, 12.2313, 38.7567)
Luminance	0.1223 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F64A8 #A8631F

analogous

#1FA8A8 #1F64A8 #1F20A8

triadic

#1F64A8 #A81F64 #64A81F

tetradic

#1F64A8 #A81FA8 #A8631F #20A81F

square

#1F64A8 #A81FA8 #A8631F #20A81F

split-complementary

#1F64A8 #A81F20 #A8A81F

monochromatic

#0C2641 #154574 #1F64A8 #2C83D8 #60A1E2

Accessibility & contrast

On white

6.09

#1F64A8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#1F64A8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F64A8

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F64A8	#FFFFFF	#000000	##FFFFFF
##1F64A8	1.00	6.09	3.45	6.09
#FFFFFF	6.09	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4369AB

Deuteranopia (green-blind)

#2C5CA7

Tritanopia (blue-blind)

#00747E

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #1f64a8;
/* rgb */ color: rgb(31, 100, 168);
/* oklch */ color: oklch(49.7% 0.128 251.9);

Tailwind

colors: {
  custom: {
    50: '#718fc2',
    500: '#1f64a8',
    950: '#000000',
  },
}

SCSS

$custom: #1f64a8;
$custom-light: #718fc2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f64a8",
  "rgb": {
    "r": 31,
    "g": 100,
    "b": 168
  },
  "hsl": {
    "h": 209.781,
    "s": 68.844,
    "l": 39.02
  },
  "oklch": {
    "l": 0.49684,
    "c": 0.12771,
    "h": 251.9
  },
  "luminance": 0.12233
}

Semantic roles & 50–950 ramp

primary

#1F64A8

secondary

#C6915D

accent

#933CEC

background

#F7F8FC

surface

#EDF0F8

border

#C8CBD1

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #1F64A8

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

Preview Lab → · Contrast checker → · Palette generator →