#1F583E#1F583E

#1F583E is a dark, moderate teal. Relative luminance 0.076; OKLCH L 41.5% C 0.074 H 160.6°. Best body text is #FFFFFF at 8.32:1 contrast (WCAG AA passes).

Color values

HEX	#1F583E
RGB	rgb(31, 88, 62)
HSL	hsl(153, 48%, 23%)
HSV	hsv(153, 65%, 35%)
CMYK	cmyk(64.8%, 0%, 29.5%, 65.5%)
CIE-LAB	lab(33.17, -25.57, 9.67)
CIE-LCH	lch(33.17, 27.34, 159.28°)
OKLab	oklab(41.5% -0.0701 0.0246)
OKLCH	oklch(41.5% 0.074 160.6)
XYZ	xyz(4.9238, 7.6181, 5.7674)
Luminance	0.0762 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F583E #581F39

analogous

#1F5822 #1F583E #1F5558

triadic

#1F583E #3E1F58 #583E1F

tetradic

#1F583E #221F58 #581F39 #55581F

square

#1F583E #221F58 #581F39 #55581F

split-complementary

#1F583E #581F55 #58221F

monochromatic

#081710 #0F2B1E #1F583E #2F855E #3FB37E

Accessibility & contrast

On white

8.32

#1F583E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#1F583E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F583E

8.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F583E	#FFFFFF	#000000	##FFFFFF
##1F583E	1.00	8.32	2.52	8.32
#FFFFFF	8.32	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57513D

Deuteranopia (green-blind)

#4F4C40

Tritanopia (blue-blind)

#045851

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1f583e;
/* rgb */ color: rgb(31, 88, 62);
/* oklch */ color: oklch(41.5% 0.074 160.6);

Tailwind

colors: {
  custom: {
    50: '#618773',
    500: '#1f583e',
    950: '#000000',
  },
}

SCSS

$custom: #1f583e;
$custom-light: #618773;
$custom-dark: #000000;

JSON

{
  "hex": "#1f583e",
  "rgb": {
    "r": 31,
    "g": 88,
    "b": 62
  },
  "hsl": {
    "h": 152.632,
    "s": 47.899,
    "l": 23.333
  },
  "oklch": {
    "l": 0.41496,
    "c": 0.07429,
    "h": 160.6
  },
  "luminance": 0.07619
}

Semantic roles & 50–950 ramp

primary

#1F583E

secondary

#8D4666

accent

#508ED7

background

#F6F8F6

surface

#EBEFEC

border

#C6CAC7

text

#050B08

muted

#7A7C7B

Preview Lab

Preview with #1F583E

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

Preview Lab → · Contrast checker → · Palette generator →