#1B5C7D#1B5C7D

#1B5C7D is a mid, moderate cyan. Relative luminance 0.094; OKLCH L 45.0% C 0.083 H 235.5°. Best body text is #FFFFFF at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#1B5C7D
RGB	rgb(27, 92, 125)
HSL	hsl(200, 64%, 30%)
HSV	hsv(200, 78%, 49%)
CMYK	cmyk(78.4%, 26.4%, 0%, 51%)
CIE-LAB	lab(36.68, -8.14, -24.33)
CIE-LCH	lch(36.68, 25.65, 251.50°)
OKLab	oklab(45.04% -0.0472 -0.0686)
OKLCH	oklch(45.04% 0.083 235.5)
XYZ	xyz(7.9793, 9.3670, 20.7855)
Luminance	0.0937 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5C7D #7D3C1B

analogous

#1B7D6D #1B5C7D #1B2B7D

triadic

#1B5C7D #7D1B5C #5C7D1B

tetradic

#1B5C7D #6D1B7D #7D3C1B #2B7D1B

square

#1B5C7D #6D1B7D #7D3C1B #2B7D1B

split-complementary

#1B5C7D #7D1B2B #7D6D1B

monochromatic

#051319 #10374B #1B5C7D #2681AF #3DA2D5

Accessibility & contrast

On white

7.31

#1B5C7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#1B5C7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5C7D

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5C7D	#FFFFFF	#000000	##FFFFFF
##1B5C7D	1.00	7.31	2.87	7.31
#FFFFFF	7.31	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C5B7F

Deuteranopia (green-blind)

#3F527C

Tritanopia (blue-blind)

#006567

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1b5c7d;
/* rgb */ color: rgb(27, 92, 125);
/* oklch */ color: oklch(45.0% 0.083 235.5);

Tailwind

colors: {
  custom: {
    50: '#678aa2',
    500: '#1b5c7d',
    950: '#000000',
  },
}

SCSS

$custom: #1b5c7d;
$custom-light: #678aa2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5c7d",
  "rgb": {
    "r": 27,
    "g": 92,
    "b": 125
  },
  "hsl": {
    "h": 200.204,
    "s": 64.474,
    "l": 29.804
  },
  "oklch": {
    "l": 0.45042,
    "c": 0.08326,
    "h": 235.5
  },
  "luminance": 0.09368
}

Semantic roles & 50–950 ramp

primary

#1B5C7D

secondary

#B16843

accent

#7940E7

background

#F6F8FA

surface

#EBF0F3

border

#C6CBCD

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #1B5C7D

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

Preview Lab → · Contrast checker → · Palette generator →