#1C587B#1C587B

#1C587B is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 43.9% C 0.083 H 238.8°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#1C587B
RGB	rgb(28, 88, 123)
HSL	hsl(202, 63%, 30%)
HSV	hsv(202, 77%, 48%)
CMYK	cmyk(77.2%, 28.5%, 0%, 51.8%)
CIE-LAB	lab(35.31, -6.31, -25.24)
CIE-LCH	lch(35.31, 26.01, 255.96°)
OKLab	oklab(43.93% -0.0432 -0.0713)
OKLCH	oklch(43.93% 0.083 238.8)
XYZ	xyz(7.5424, 8.6555, 20.0082)
Luminance	0.0866 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C587B #7B3F1C

analogous

#1C7B6F #1C587B #1C297B

triadic

#1C587B #7B1C58 #587B1C

tetradic

#1C587B #6F1C7B #7B3F1C #297B1C

square

#1C587B #6F1C7B #7B3F1C #297B1C

split-complementary

#1C587B #7B1C29 #7B6F1C

monochromatic

#061219 #113449 #1C587B #277CAD #3E9CD3

Accessibility & contrast

On white

7.69

#1C587B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#1C587B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C587B

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C587B	#FFFFFF	#000000	##FFFFFF
##1C587B	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#48587D

Deuteranopia (green-blind)

#3B4F7A

Tritanopia (blue-blind)

#006164

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1c587b;
/* rgb */ color: rgb(28, 88, 123);
/* oklch */ color: oklch(43.9% 0.083 238.8);

Tailwind

colors: {
  custom: {
    50: '#6787a1',
    500: '#1c587b',
    950: '#000000',
  },
}

SCSS

$custom: #1c587b;
$custom-light: #6787a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c587b",
  "rgb": {
    "r": 28,
    "g": 88,
    "b": 123
  },
  "hsl": {
    "h": 202.105,
    "s": 62.914,
    "l": 29.608
  },
  "oklch": {
    "l": 0.4393,
    "c": 0.08334,
    "h": 238.8
  },
  "luminance": 0.08656
}

Semantic roles & 50–950 ramp

primary

#1C587B

secondary

#AF6B44

accent

#7E42E6

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#070B0F

muted

#7A7C7E

Preview Lab

Preview with #1C587B

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

Preview Lab → · Contrast checker → · Palette generator →