#1D637D#1D637D

#1D637D is a mid, moderate cyan. Relative luminance 0.107; OKLCH L 46.9% C 0.079 H 227.3°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#1D637D
RGB	rgb(29, 99, 125)
HSL	hsl(196, 62%, 30%)
HSV	hsv(196, 77%, 49%)
CMYK	cmyk(76.8%, 20.8%, 0%, 51%)
CIE-LAB	lab(39.01, -12.04, -20.71)
CIE-LCH	lch(39.01, 23.96, 239.82°)
OKLab	oklab(46.91% -0.0535 -0.0581)
OKLCH	oklch(46.91% 0.079 227.3)
XYZ	xyz(8.6687, 10.6645, 20.9997)
Luminance	0.1067 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D637D #7D371D

analogous

#1D7D67 #1D637D #1D337D

triadic

#1D637D #7D1D63 #637D1D

tetradic

#1D637D #671D7D #7D371D #337D1D

square

#1D637D #671D7D #7D371D #337D1D

split-complementary

#1D637D #7D1D33 #7D671D

monochromatic

#06141A #113C4B #1D637D #298AAF #41ACD3

Accessibility & contrast

On white

6.70

#1D637D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#1D637D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D637D

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D637D	#FFFFFF	#000000	##FFFFFF
##1D637D	1.00	6.70	3.13	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#55617E

Deuteranopia (green-blind)

#48587D

Tritanopia (blue-blind)

#006A6C

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #1d637d;
/* rgb */ color: rgb(29, 99, 125);
/* oklch */ color: oklch(46.9% 0.079 227.3);

Tailwind

colors: {
  custom: {
    50: '#688fa2',
    500: '#1d637d',
    950: '#000000',
  },
}

SCSS

$custom: #1d637d;
$custom-light: #688fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d637d",
  "rgb": {
    "r": 29,
    "g": 99,
    "b": 125
  },
  "hsl": {
    "h": 196.25,
    "s": 62.338,
    "l": 30.196
  },
  "oklch": {
    "l": 0.46914,
    "c": 0.07899,
    "h": 227.3
  },
  "luminance": 0.10666
}

Semantic roles & 50–950 ramp

primary

#1D637D

secondary

#B16245

accent

#6F42E5

background

#F6F8FA

surface

#EBF0F3

border

#C6CBCD

text

#070C0F

muted

#7A7D7F

Preview Lab

Preview with #1D637D

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

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