#1D638C#1D638C

#1D638C is a mid, moderate cyan. Relative luminance 0.111; OKLCH L 47.7% C 0.094 H 239.4°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#1D638C
RGB	rgb(29, 99, 140)
HSL	hsl(202, 66%, 33%)
HSV	hsv(202, 79%, 55%)
CMYK	cmyk(79.3%, 29.3%, 0%, 45.1%)
CIE-LAB	lab(39.71, -6.47, -28.71)
CIE-LCH	lch(39.71, 29.43, 257.30°)
OKLab	oklab(47.7% -0.0479 -0.0812)
OKLCH	oklch(47.7% 0.094 239.4)
XYZ	xyz(9.7003, 11.0772, 26.4327)
Luminance	0.1108 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D638C #8C461D

analogous

#1D8C7D #1D638C #1D2C8C

triadic

#1D638C #8C1D63 #638C1D

tetradic

#1D638C #7D1D8C #8C461D #2C8C1D

square

#1D638C #7D1D8C #8C461D #2C8C1D

split-complementary

#1D638C #8C1D2C #8C7D1D

monochromatic

#081B27 #123F59 #1D638C #2887BF #4AA4D9

Accessibility & contrast

On white

6.53

#1D638C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#1D638C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D638C

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D638C	#FFFFFF	#000000	##FFFFFF
##1D638C	1.00	6.53	3.22	6.53
#FFFFFF	6.53	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#50638E

Deuteranopia (green-blind)

#41598B

Tritanopia (blue-blind)

#006D71

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #1d638c;
/* rgb */ color: rgb(29, 99, 140);
/* oklch */ color: oklch(47.7% 0.094 239.4);

Tailwind

colors: {
  custom: {
    50: '#6b8fae',
    500: '#1d638c',
    950: '#000000',
  },
}

SCSS

$custom: #1d638c;
$custom-light: #6b8fae;
$custom-dark: #000000;

JSON

{
  "hex": "#1d638c",
  "rgb": {
    "r": 29,
    "g": 99,
    "b": 140
  },
  "hsl": {
    "h": 202.162,
    "s": 65.68,
    "l": 33.137
  },
  "oklch": {
    "l": 0.47703,
    "c": 0.09432,
    "h": 239.4
  },
  "luminance": 0.11078
}

Semantic roles & 50–950 ramp

primary

#1D638C

secondary

#BC7349

accent

#7E3FE9

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#080C10

muted

#7A7D7F

Preview Lab

Preview with #1D638C

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

Preview Lab → · Contrast checker → · Palette generator →