#1F423D#1F423D

#1F423D is a dark, muted teal. Relative luminance 0.045; OKLCH L 35.1% C 0.042 H 183.5°. Best body text is #FFFFFF at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#1F423D
RGB	rgb(31, 66, 61)
HSL	hsl(171, 36%, 19%)
HSV	hsv(171, 53%, 26%)
CMYK	cmyk(53%, 0%, 7.6%, 74.1%)
CIE-LAB	lab(25.33, -14.15, -0.88)
CIE-LCH	lch(25.33, 14.17, 183.55°)
OKLab	oklab(35.11% -0.0417 -0.0026)
OKLCH	oklch(35.11% 0.042 183.5)
XYZ	xyz(3.3552, 4.5244, 5.1105)
Luminance	0.0452 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F423D #421F24

analogous

#1F422C #1F423D #1F3642

triadic

#1F423D #3D1F42 #423D1F

tetradic

#1F423D #2C1F42 #421F24 #36421F

square

#1F423D #2C1F42 #421F24 #36421F

split-complementary

#1F423D #421F36 #422C1F

monochromatic

#0A1513 #0B1817 #1F423D #336C63 #46958A

Accessibility & contrast

On white

11.02

#1F423D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1F423D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F423D

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F423D	#FFFFFF	#000000	##FFFFFF
##1F423D	1.00	11.02	1.91	11.02
#FFFFFF	11.02	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F3F3D

Deuteranopia (green-blind)

#393A3D

Tritanopia (blue-blind)

#0F4340

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1f423d;
/* rgb */ color: rgb(31, 66, 61);
/* oklch */ color: oklch(35.1% 0.042 183.5);

Tailwind

colors: {
  custom: {
    50: '#5e7672',
    500: '#1f423d',
    950: '#000000',
  },
}

SCSS

$custom: #1f423d;
$custom-light: #5e7672;
$custom-dark: #000000;

JSON

{
  "hex": "#1f423d",
  "rgb": {
    "r": 31,
    "g": 66,
    "b": 61
  },
  "hsl": {
    "h": 171.429,
    "s": 36.082,
    "l": 19.02
  },
  "oklch": {
    "l": 0.35112,
    "c": 0.0418,
    "h": 183.5
  },
  "luminance": 0.04525
}

Semantic roles & 50–950 ramp

primary

#1F423D

secondary

#76474D

accent

#5C6CCC

background

#F5F7F6

surface

#E9EDEC

border

#C5C8C7

text

#040808

muted

#797B7B

Preview Lab

Preview with #1F423D

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

Preview Lab → · Contrast checker → · Palette generator →