#1F647B#1F647B

#1F647B is a mid, moderate cyan. Relative luminance 0.108; OKLCH L 47.1% C 0.076 H 224.4°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#1F647B
RGB	rgb(31, 100, 123)
HSL	hsl(195, 60%, 30%)
HSV	hsv(195, 75%, 48%)
CMYK	cmyk(74.8%, 18.7%, 0%, 51.8%)
CIE-LAB	lab(39.30, -13.06, -19.04)
CIE-LCH	lch(39.30, 23.09, 235.54°)
OKLab	oklab(47.13% -0.0544 -0.0533)
OKLCH	oklch(47.13% 0.076 224.4)
XYZ	xyz(8.6959, 10.8347, 20.3681)
Luminance	0.1084 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F647B #7B361F

analogous

#1F7B64 #1F647B #1F367B

triadic

#1F647B #7B1F64 #647B1F

tetradic

#1F647B #641F7B #7B361F #367B1F

square

#1F647B #641F7B #7B361F #367B1F

split-complementary

#1F647B #7B1F36 #7B641F

monochromatic

#061519 #133C4A #1F647B #2B8CAC #44ADD0

Accessibility & contrast

On white

6.63

#1F647B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#1F647B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F647B

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F647B	#FFFFFF	#000000	##FFFFFF
##1F647B	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57627C

Deuteranopia (green-blind)

#4B597B

Tritanopia (blue-blind)

#006B6B

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #1f647b;
/* rgb */ color: rgb(31, 100, 123);
/* oklch */ color: oklch(47.1% 0.076 224.4);

Tailwind

colors: {
  custom: {
    50: '#6990a1',
    500: '#1f647b',
    950: '#000000',
  },
}

SCSS

$custom: #1f647b;
$custom-light: #6990a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f647b",
  "rgb": {
    "r": 31,
    "g": 100,
    "b": 123
  },
  "hsl": {
    "h": 195,
    "s": 59.74,
    "l": 30.196
  },
  "oklch": {
    "l": 0.47133,
    "c": 0.07614,
    "h": 224.4
  },
  "luminance": 0.10836
}

Semantic roles & 50–950 ramp

primary

#1F647B

secondary

#AE6148

accent

#6C45E3

background

#F6F8F9

surface

#ECF0F2

border

#C7CBCC

text

#070C0F

muted

#7A7D7E

Preview Lab

Preview with #1F647B

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

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