#1C5A7B#1C5A7B

#1C5A7B is a dark, moderate cyan. Relative luminance 0.090; OKLCH L 44.4% C 0.082 H 236.4°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#1C5A7B
RGB	rgb(28, 90, 123)
HSL	hsl(201, 63%, 30%)
HSV	hsv(201, 77%, 48%)
CMYK	cmyk(77.2%, 26.8%, 0%, 51.8%)
CIE-LAB	lab(35.96, -7.54, -24.22)
CIE-LCH	lch(35.96, 25.37, 252.70°)
OKLab	oklab(44.45% -0.0453 -0.0683)
OKLCH	oklch(44.45% 0.082 236.4)
XYZ	xyz(7.7088, 8.9884, 20.0637)
Luminance	0.0899 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C5A7B #7B3D1C

analogous

#1C7B6D #1C5A7B #1C2B7B

triadic

#1C5A7B #7B1C5A #5A7B1C

tetradic

#1C5A7B #6D1C7B #7B3D1C #2B7B1C

square

#1C5A7B #6D1C7B #7B3D1C #2B7B1C

split-complementary

#1C5A7B #7B1C2B #7B6D1C

monochromatic

#061219 #113649 #1C5A7B #277EAD #3E9FD3

Accessibility & contrast

On white

7.51

#1C5A7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#1C5A7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C5A7B

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C5A7B	#FFFFFF	#000000	##FFFFFF
##1C5A7B	1.00	7.51	2.80	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A5A7D

Deuteranopia (green-blind)

#3D517A

Tritanopia (blue-blind)

#006365

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1c5a7b;
/* rgb */ color: rgb(28, 90, 123);
/* oklch */ color: oklch(44.4% 0.082 236.4);

Tailwind

colors: {
  custom: {
    50: '#6788a1',
    500: '#1c5a7b',
    950: '#000000',
  },
}

SCSS

$custom: #1c5a7b;
$custom-light: #6788a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c5a7b",
  "rgb": {
    "r": 28,
    "g": 90,
    "b": 123
  },
  "hsl": {
    "h": 200.842,
    "s": 62.914,
    "l": 29.608
  },
  "oklch": {
    "l": 0.44445,
    "c": 0.08196,
    "h": 236.4
  },
  "luminance": 0.08989
}

Semantic roles & 50–950 ramp

primary

#1C5A7B

secondary

#AF6944

accent

#7B42E6

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#070B0F

muted

#7A7C7E

Preview Lab

Preview with #1C5A7B

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

Preview Lab → · Contrast checker → · Palette generator →