#1D738B#1D738B

#1D738B is a mid, moderate cyan. Relative luminance 0.144; OKLCH L 51.7% C 0.086 H 221.3°. Best body text is #FFFFFF at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#1D738B
RGB	rgb(29, 115, 139)
HSL	hsl(193, 65%, 33%)
HSV	hsv(193, 79%, 55%)
CMYK	cmyk(79.1%, 17.3%, 0%, 45.5%)
CIE-LAB	lab(44.78, -16.16, -20.24)
CIE-LCH	lch(44.78, 25.90, 231.39°)
OKLab	oklab(51.74% -0.0645 -0.0566)
OKLCH	oklch(51.74% 0.086 221.3)
XYZ	xyz(11.2957, 14.3854, 26.6024)
Luminance	0.1439 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D738B #8B351D

analogous

#1D8B6C #1D738B #1D3C8B

triadic

#1D738B #8B1D73 #738B1D

tetradic

#1D738B #6C1D8B #8B351D #3C8B1D

square

#1D738B #6C1D8B #8B351D #3C8B1D

split-complementary

#1D738B #8B1D3C #8B6C1D

monochromatic

#081F26 #124958 #1D738B #289DBE #49BAD9

Accessibility & contrast

On white

5.42

#1D738B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.88

#1D738B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D738B

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D738B	#FFFFFF	#000000	##FFFFFF
##1D738B	1.00	5.42	3.88	5.42
#FFFFFF	5.42	1.00	21.00	1.00
#000000	3.88	21.00	1.00	21.00
##FFFFFF	5.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#65708C

Deuteranopia (green-blind)

#56658B

Tritanopia (blue-blind)

#007B7B

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #1d738b;
/* rgb */ color: rgb(29, 115, 139);
/* oklch */ color: oklch(51.7% 0.086 221.3);

Tailwind

colors: {
  custom: {
    50: '#6c9bad',
    500: '#1d738b',
    950: '#000000',
  },
}

SCSS

$custom: #1d738b;
$custom-light: #6c9bad;
$custom-dark: #000000;

JSON

{
  "hex": "#1d738b",
  "rgb": {
    "r": 29,
    "g": 115,
    "b": 139
  },
  "hsl": {
    "h": 193.091,
    "s": 65.476,
    "l": 32.941
  },
  "oklch": {
    "l": 0.51737,
    "c": 0.08587,
    "h": 221.3
  },
  "luminance": 0.14387
}

Semantic roles & 50–950 ramp

primary

#1D738B

secondary

#BB6249

accent

#643FE8

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #1D738B

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

Preview Lab → · Contrast checker → · Palette generator →