#1F583D#1F583D

#1F583D is a dark, moderate teal. Relative luminance 0.076; OKLCH L 41.5% C 0.075 H 159.7°. Best body text is #FFFFFF at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#1F583D
RGB	rgb(31, 88, 61)
HSL	hsl(152, 48%, 23%)
HSV	hsv(152, 65%, 35%)
CMYK	cmyk(64.8%, 0%, 30.7%, 65.5%)
CIE-LAB	lab(33.15, -25.81, 10.26)
CIE-LCH	lch(33.15, 27.77, 158.32°)
OKLab	oklab(41.47% -0.0706 0.0261)
OKLCH	oklch(41.47% 0.075 159.7)
XYZ	xyz(4.8967, 7.6072, 5.6243)
Luminance	0.0761 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F583D #581F3A

analogous

#1F5820 #1F583D #1F5658

triadic

#1F583D #3D1F58 #583D1F

tetradic

#1F583D #201F58 #581F3A #56581F

square

#1F583D #201F58 #581F3A #56581F

split-complementary

#1F583D #581F56 #58201F

monochromatic

#081710 #0F2B1E #1F583D #2F855C #3FB37C

Accessibility & contrast

On white

8.33

#1F583D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#1F583D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F583D

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F583D	#FFFFFF	#000000	##FFFFFF
##1F583D	1.00	8.33	2.52	8.33
#FFFFFF	8.33	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57513B

Deuteranopia (green-blind)

#4F4C3F

Tritanopia (blue-blind)

#055851

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1f583d;
/* rgb */ color: rgb(31, 88, 61);
/* oklch */ color: oklch(41.5% 0.075 159.7);

Tailwind

colors: {
  custom: {
    50: '#618772',
    500: '#1f583d',
    950: '#000000',
  },
}

SCSS

$custom: #1f583d;
$custom-light: #618772;
$custom-dark: #000000;

JSON

{
  "hex": "#1f583d",
  "rgb": {
    "r": 31,
    "g": 88,
    "b": 61
  },
  "hsl": {
    "h": 151.579,
    "s": 47.899,
    "l": 23.333
  },
  "oklch": {
    "l": 0.41469,
    "c": 0.0753,
    "h": 159.7
  },
  "luminance": 0.07608
}

Semantic roles & 50–950 ramp

primary

#1F583D

secondary

#8D4668

accent

#5090D7

background

#F6F8F6

surface

#EBEFEC

border

#C6CAC7

text

#050B08

muted

#7A7C7B

Preview Lab

Preview with #1F583D

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

Preview Lab → · Contrast checker → · Palette generator →