#1D5C83#1D5C83

#1D5C83 is a mid, moderate cyan. Relative luminance 0.096; OKLCH L 45.4% C 0.089 H 240.5°. Best body text is #FFFFFF at 7.21:1 contrast (WCAG AA passes).

Color values

HEX	#1D5C83
RGB	rgb(29, 92, 131)
HSL	hsl(203, 64%, 31%)
HSV	hsv(203, 78%, 51%)
CMYK	cmyk(77.9%, 29.8%, 0%, 48.6%)
CIE-LAB	lab(37.03, -5.60, -27.45)
CIE-LCH	lch(37.03, 28.02, 258.47°)
OKLab	oklab(45.43% -0.044 -0.0776)
OKLCH	oklch(45.43% 0.089 240.5)
XYZ	xyz(8.4290, 9.5532, 22.8680)
Luminance	0.0955 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5C83 #83441D

analogous

#1D8377 #1D5C83 #1D2983

triadic

#1D5C83 #831D5C #5C831D

tetradic

#1D5C83 #771D83 #83441D #29831D

square

#1D5C83 #771D83 #83441D #29831D

split-complementary

#1D5C83 #831D29 #83771D

monochromatic

#07161F #123951 #1D5C83 #287FB5 #459ED6

Accessibility & contrast

On white

7.21

#1D5C83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#1D5C83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D5C83

7.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5C83	#FFFFFF	#000000	##FFFFFF
##1D5C83	1.00	7.21	2.91	7.21
#FFFFFF	7.21	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A5C85

Deuteranopia (green-blind)

#3C5382

Tritanopia (blue-blind)

#00666A

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1d5c83;
/* rgb */ color: rgb(29, 92, 131);
/* oklch */ color: oklch(45.4% 0.089 240.5);

Tailwind

colors: {
  custom: {
    50: '#698aa7',
    500: '#1d5c83',
    950: '#000000',
  },
}

SCSS

$custom: #1d5c83;
$custom-light: #698aa7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5c83",
  "rgb": {
    "r": 29,
    "g": 92,
    "b": 131
  },
  "hsl": {
    "h": 202.941,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.45429,
    "c": 0.08924,
    "h": 240.5
  },
  "luminance": 0.09554
}

Semantic roles & 50–950 ramp

primary

#1D5C83

secondary

#B67146

accent

#8041E7

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #1D5C83

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

Preview Lab → · Contrast checker → · Palette generator →