#1B5970#1B5970

#1B5970 is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 43.6% C 0.072 H 227.0°. Best body text is #FFFFFF at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#1B5970
RGB	rgb(27, 89, 112)
HSL	hsl(196, 61%, 27%)
HSV	hsv(196, 76%, 44%)
CMYK	cmyk(75.9%, 20.5%, 0%, 56.1%)
CIE-LAB	lab(35.10, -11.18, -18.77)
CIE-LCH	lch(35.10, 21.85, 239.21°)
OKLab	oklab(43.58% -0.0491 -0.0526)
OKLCH	oklch(43.58% 0.072 227)
XYZ	xyz(6.9478, 8.5468, 16.6096)
Luminance	0.0855 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5970 #70321B

analogous

#1B705C #1B5970 #1B2F70

triadic

#1B5970 #701B59 #59701B

tetradic

#1B5970 #5C1B70 #70321B #2F701B

square

#1B5970 #5C1B70 #70321B #2F701B

split-complementary

#1B5970 #701B2F #705C1B

monochromatic

#061419 #0F323F #1B5970 #2780A1 #37A6CF

Accessibility & contrast

On white

7.75

#1B5970 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#1B5970 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5970

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5970	#FFFFFF	#000000	##FFFFFF
##1B5970	1.00	7.75	2.71	7.75
#FFFFFF	7.75	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D5771

Deuteranopia (green-blind)

#414F70

Tritanopia (blue-blind)

#006061

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1b5970;
/* rgb */ color: rgb(27, 89, 112);
/* oklch */ color: oklch(43.6% 0.072 227.0);

Tailwind

colors: {
  custom: {
    50: '#658899',
    500: '#1b5970',
    950: '#000000',
  },
}

SCSS

$custom: #1b5970;
$custom-light: #658899;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5970",
  "rgb": {
    "r": 27,
    "g": 89,
    "b": 112
  },
  "hsl": {
    "h": 196.235,
    "s": 61.151,
    "l": 27.255
  },
  "oklch": {
    "l": 0.4358,
    "c": 0.07192,
    "h": 227
  },
  "luminance": 0.08548
}

Semantic roles & 50–950 ramp

primary

#1B5970

secondary

#A55D42

accent

#6F44E4

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0E

muted

#7A7C7E

Preview Lab

Preview with #1B5970

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

Preview Lab → · Contrast checker → · Palette generator →