#1F4E59#1F4E59

#1F4E59 is a dark, muted cyan. Relative luminance 0.065; OKLCH L 39.6% C 0.054 H 215.5°. Best body text is #FFFFFF at 9.16:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E59
RGB	rgb(31, 78, 89)
HSL	hsl(191, 48%, 24%)
HSV	hsv(191, 65%, 35%)
CMYK	cmyk(65.2%, 12.4%, 0%, 65.1%)
CIE-LAB	lab(30.55, -12.14, -11.25)
CIE-LCH	lch(30.55, 16.56, 222.82°)
OKLab	oklab(39.65% -0.0437 -0.0312)
OKLCH	oklch(39.65% 0.054 215.5)
XYZ	xyz(5.0919, 6.4608, 10.4280)
Luminance	0.0646 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E59 #592A1F

analogous

#1F5947 #1F4E59 #1F3159

triadic

#1F4E59 #591F4E #4E591F

tetradic

#1F4E59 #471F59 #592A1F #31591F

square

#1F4E59 #471F59 #592A1F #31591F

split-complementary

#1F4E59 #591F31 #59471F

monochromatic

#081417 #0F262C #1F4E59 #2F7686 #3F9EB4

Accessibility & contrast

On white

9.16

#1F4E59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#1F4E59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E59

9.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E59	#FFFFFF	#000000	##FFFFFF
##1F4E59	1.00	9.16	2.29	9.16
#FFFFFF	9.16	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#464C5A

Deuteranopia (green-blind)

#3E4559

Tritanopia (blue-blind)

#005251

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1f4e59;
/* rgb */ color: rgb(31, 78, 89);
/* oklch */ color: oklch(39.6% 0.054 215.5);

Tailwind

colors: {
  custom: {
    50: '#627f87',
    500: '#1f4e59',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e59;
$custom-light: #627f87;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e59",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 89
  },
  "hsl": {
    "h": 191.379,
    "s": 48.333,
    "l": 23.529
  },
  "oklch": {
    "l": 0.39647,
    "c": 0.05373,
    "h": 215.5
  },
  "luminance": 0.06461
}

Semantic roles & 50–950 ramp

primary

#1F4E59

secondary

#8E5446

accent

#6A50D8

background

#F6F7F8

surface

#EBEEEF

border

#C6C9CA

text

#050A0B

muted

#7A7C7C

Preview Lab

Preview with #1F4E59

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

Preview Lab → · Contrast checker → · Palette generator →