#1F647F#1F647F

#1F647F is a mid, moderate cyan. Relative luminance 0.109; OKLCH L 47.3% C 0.080 H 228.4°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#1F647F
RGB	rgb(31, 100, 127)
HSL	hsl(197, 61%, 31%)
HSV	hsv(197, 76%, 50%)
CMYK	cmyk(75.6%, 21.3%, 0%, 50.2%)
CIE-LAB	lab(39.47, -11.63, -21.20)
CIE-LCH	lch(39.47, 24.18, 241.26°)
OKLab	oklab(47.33% -0.0528 -0.0595)
OKLCH	oklch(47.33% 0.08 228.4)
XYZ	xyz(8.9515, 10.9369, 21.7138)
Luminance	0.1094 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F647F #7F3A1F

analogous

#1F7F6A #1F647F #1F347F

triadic

#1F647F #7F1F64 #647F1F

tetradic

#1F647F #6A1F7F #7F3A1F #347F1F

square

#1F647F #6A1F7F #7F3A1F #347F1F

split-complementary

#1F647F #7F1F34 #7F6A1F

monochromatic

#07171D #133D4E #1F647F #2B8BB0 #46ABD2

Accessibility & contrast

On white

6.59

#1F647F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#1F647F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F647F

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F647F	#FFFFFF	#000000	##FFFFFF
##1F647F	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#566280

Deuteranopia (green-blind)

#49597F

Tritanopia (blue-blind)

#006C6D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #1f647f;
/* rgb */ color: rgb(31, 100, 127);
/* oklch */ color: oklch(47.3% 0.080 228.4);

Tailwind

colors: {
  custom: {
    50: '#6990a4',
    500: '#1f647f',
    950: '#000000',
  },
}

SCSS

$custom: #1f647f;
$custom-light: #6990a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1f647f",
  "rgb": {
    "r": 31,
    "g": 100,
    "b": 127
  },
  "hsl": {
    "h": 196.875,
    "s": 60.759,
    "l": 30.98
  },
  "oklch": {
    "l": 0.47329,
    "c": 0.07953,
    "h": 228.4
  },
  "luminance": 0.10938
}

Semantic roles & 50–950 ramp

primary

#1F647F

secondary

#B26648

accent

#7144E4

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070C0F

muted

#7A7D7F

Preview Lab

Preview with #1F647F

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

Preview Lab → · Contrast checker → · Palette generator →