#1C5B9E#1C5B9E

#1C5B9E is a mid, vivid cyan. Relative luminance 0.102; OKLCH L 46.8% C 0.125 H 253.4°. Best body text is #FFFFFF at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#1C5B9E
RGB	rgb(28, 91, 158)
HSL	hsl(211, 70%, 36%)
HSV	hsv(211, 82%, 62%)
CMYK	cmyk(82.3%, 42.4%, 0%, 38%)
CIE-LAB	lab(38.19, 5.48, -41.93)
CIE-LCH	lch(38.19, 42.29, 277.44°)
OKLab	oklab(46.83% -0.0358 -0.12)
OKLCH	oklch(46.83% 0.125 253.4)
XYZ	xyz(10.3892, 10.1964, 33.7617)
Luminance	0.1020 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C5B9E #9E5F1C

analogous

#1C9C9E #1C5B9E #1E1C9E

triadic

#1C5B9E #9E1C5B #5B9E1C

tetradic

#1C5B9E #9E1C9C #9E5F1C #1C9E1E

square

#1C5B9E #9E1C9C #9E5F1C #1C9E1E

split-complementary

#1C5B9E #9E1E1C #9C9E1C

monochromatic

#0A1F36 #133D6A #1C5B9E #2579D2 #5498E1

Accessibility & contrast

On white

6.91

#1C5B9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#1C5B9E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1C5B9E

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C5B9E	#FFFFFF	#000000	##FFFFFF
##1C5B9E	1.00	6.91	3.04	6.91
#FFFFFF	6.91	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A60A1

Deuteranopia (green-blind)

#22559D

Tritanopia (blue-blind)

#006B75

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1c5b9e;
/* rgb */ color: rgb(28, 91, 158);
/* oklch */ color: oklch(46.8% 0.125 253.4);

Tailwind

colors: {
  custom: {
    50: '#6e88bb',
    500: '#1c5b9e',
    950: '#000000',
  },
}

SCSS

$custom: #1c5b9e;
$custom-light: #6e88bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1c5b9e",
  "rgb": {
    "r": 28,
    "g": 91,
    "b": 158
  },
  "hsl": {
    "h": 210.923,
    "s": 69.892,
    "l": 36.471
  },
  "oklch": {
    "l": 0.46826,
    "c": 0.12527,
    "h": 253.4
  },
  "luminance": 0.10198
}

Semantic roles & 50–950 ramp

primary

#1C5B9E

secondary

#C48D52

accent

#973BED

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B12

muted

#7B7C81

Preview Lab

Preview with #1C5B9E

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

Preview Lab → · Contrast checker → · Palette generator →