#1F648E#1F648E

#1F648E is a mid, moderate cyan. Relative luminance 0.114; OKLCH L 48.1% C 0.095 H 240.2°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#1F648E
RGB	rgb(31, 100, 142)
HSL	hsl(203, 64%, 34%)
HSV	hsv(203, 78%, 56%)
CMYK	cmyk(78.2%, 29.6%, 0%, 44.3%)
CIE-LAB	lab(40.18, -6.07, -29.18)
CIE-LCH	lch(40.18, 29.81, 258.24°)
OKLab	oklab(48.12% -0.0473 -0.0825)
OKLCH	oklch(48.12% 0.095 240.2)
XYZ	xyz(10.0028, 11.3575, 27.2510)
Luminance	0.1136 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F648E #8E491F

analogous

#1F8E81 #1F648E #1F2C8E

triadic

#1F648E #8E1F64 #648E1F

tetradic

#1F648E #811F8E #8E491F #2C8E1F

square

#1F648E #811F8E #8E491F #2C8E1F

split-complementary

#1F648E #8E1F2C #8E811F

monochromatic

#091D2A #14415C #1F648E #2A87C0 #4FA4D9

Accessibility & contrast

On white

6.42

#1F648E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#1F648E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F648E

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F648E	#FFFFFF	#000000	##FFFFFF
##1F648E	1.00	6.42	3.27	6.42
#FFFFFF	6.42	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#506490

Deuteranopia (green-blind)

#415A8D

Tritanopia (blue-blind)

#006F73

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #1f648e;
/* rgb */ color: rgb(31, 100, 142);
/* oklch */ color: oklch(48.1% 0.095 240.2);

Tailwind

colors: {
  custom: {
    50: '#6c90af',
    500: '#1f648e',
    950: '#000000',
  },
}

SCSS

$custom: #1f648e;
$custom-light: #6c90af;
$custom-dark: #000000;

JSON

{
  "hex": "#1f648e",
  "rgb": {
    "r": 31,
    "g": 100,
    "b": 142
  },
  "hsl": {
    "h": 202.703,
    "s": 64.162,
    "l": 33.922
  },
  "oklch": {
    "l": 0.4812,
    "c": 0.09512,
    "h": 240.2
  },
  "luminance": 0.11359
}

Semantic roles & 50–950 ramp

primary

#1F648E

secondary

#BB774D

accent

#8041E7

background

#F7F8FA

surface

#EDF0F4

border

#C8CBCE

text

#080C10

muted

#7B7D7F

Preview Lab

Preview with #1F648E

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

Preview Lab → · Contrast checker → · Palette generator →