#1B506D#1B506D

#1B506D is a dark, moderate cyan. Relative luminance 0.071; OKLCH L 41.0% C 0.073 H 236.6°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#1B506D
RGB	rgb(27, 80, 109)
HSL	hsl(201, 60%, 27%)
HSV	hsv(201, 75%, 43%)
CMYK	cmyk(75.2%, 26.6%, 0%, 57.3%)
CIE-LAB	lab(31.97, -6.82, -21.74)
CIE-LCH	lch(31.97, 22.78, 252.58°)
OKLab	oklab(41.04% -0.0403 -0.0612)
OKLCH	oklch(41.04% 0.073 236.6)
XYZ	xyz(6.0799, 7.0738, 15.5100)
Luminance	0.0707 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B506D #6D381B

analogous

#1B6D61 #1B506D #1B276D

triadic

#1B506D #6D1B50 #506D1B

tetradic

#1B506D #611B6D #6D381B #276D1B

square

#1B506D #611B6D #6D381B #276D1B

split-complementary

#1B506D #6D1B27 #6D611B

monochromatic

#061219 #0F2C3C #1B506D #27749E #3597CD

Accessibility & contrast

On white

8.70

#1B506D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#1B506D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B506D

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B506D	#FFFFFF	#000000	##FFFFFF
##1B506D	1.00	8.70	2.41	8.70
#FFFFFF	8.70	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#42506E

Deuteranopia (green-blind)

#37486D

Tritanopia (blue-blind)

#00575A

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1b506d;
/* rgb */ color: rgb(27, 80, 109);
/* oklch */ color: oklch(41.0% 0.073 236.6);

Tailwind

colors: {
  custom: {
    50: '#638197',
    500: '#1b506d',
    950: '#000000',
  },
}

SCSS

$custom: #1b506d;
$custom-light: #638197;
$custom-dark: #000000;

JSON

{
  "hex": "#1b506d",
  "rgb": {
    "r": 27,
    "g": 80,
    "b": 109
  },
  "hsl": {
    "h": 201.22,
    "s": 60.294,
    "l": 26.667
  },
  "oklch": {
    "l": 0.41044,
    "c": 0.07332,
    "h": 236.6
  },
  "luminance": 0.07074
}

Semantic roles & 50–950 ramp

primary

#1B506D

secondary

#A26442

accent

#7D44E3

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0D

muted

#7A7C7E

Preview Lab

Preview with #1B506D

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

Preview Lab → · Contrast checker → · Palette generator →