#1F5B79#1F5B79

#1F5B79 is a dark, moderate cyan. Relative luminance 0.092; OKLCH L 44.7% C 0.078 H 234.3°. Best body text is #FFFFFF at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#1F5B79
RGB	rgb(31, 91, 121)
HSL	hsl(200, 59%, 30%)
HSV	hsv(200, 74%, 47%)
CMYK	cmyk(74.4%, 24.8%, 0%, 52.5%)
CIE-LAB	lab(36.28, -8.46, -22.49)
CIE-LCH	lch(36.28, 24.03, 249.38°)
OKLab	oklab(44.69% -0.0454 -0.0633)
OKLCH	oklch(44.69% 0.078 234.3)
XYZ	xyz(7.7560, 9.1531, 19.4434)
Luminance	0.0915 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5B79 #793D1F

analogous

#1F796A #1F5B79 #1F2E79

triadic

#1F5B79 #791F5B #5B791F

tetradic

#1F5B79 #6A1F79 #793D1F #2E791F

square

#1F5B79 #6A1F79 #793D1F #2E791F

split-complementary

#1F5B79 #791F2E #796A1F

monochromatic

#061218 #133648 #1F5B79 #2B80AA #43A0CF

Accessibility & contrast

On white

7.42

#1F5B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#1F5B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F5B79

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5B79	#FFFFFF	#000000	##FFFFFF
##1F5B79	1.00	7.42	2.83	7.42
#FFFFFF	7.42	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C5A7A

Deuteranopia (green-blind)

#405179

Tritanopia (blue-blind)

#006365

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1f5b79;
/* rgb */ color: rgb(31, 91, 121);
/* oklch */ color: oklch(44.7% 0.078 234.3);

Tailwind

colors: {
  custom: {
    50: '#6889a0',
    500: '#1f5b79',
    950: '#000000',
  },
}

SCSS

$custom: #1f5b79;
$custom-light: #6889a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5b79",
  "rgb": {
    "r": 31,
    "g": 91,
    "b": 121
  },
  "hsl": {
    "h": 200,
    "s": 59.211,
    "l": 29.804
  },
  "oklch": {
    "l": 0.44689,
    "c": 0.07789,
    "h": 234.3
  },
  "luminance": 0.09154
}

Semantic roles & 50–950 ramp

primary

#1F5B79

secondary

#AC6947

accent

#7A45E2

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#070B0E

muted

#7A7C7E

Preview Lab

Preview with #1F5B79

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

Preview Lab → · Contrast checker → · Palette generator →