#1F2001#1F2001

#1F2001 is a very dark, muted yellow. Relative luminance 0.013; OKLCH L 23.5% C 0.050 H 111.4°. Best body text is #FFFFFF at 16.60:1 contrast (WCAG AA passes).

Color values

HEX	#1F2001
RGB	rgb(31, 32, 1)
HSL	hsl(62, 94%, 6%)
HSV	hsv(62, 97%, 13%)
CMYK	cmyk(3.1%, 0%, 96.9%, 87.5%)
CIE-LAB	lab(11.46, -5.71, 16.50)
CIE-LCH	lch(11.46, 17.46, 109.08°)
OKLab	oklab(23.48% -0.0183 0.0466)
OKLCH	oklch(23.48% 0.05 111.4)
XYZ	xyz(1.0871, 1.3266, 0.2275)
Luminance	0.0133 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2001 #020120

analogous

#201201 #1F2001 #102001

triadic

#1F2001 #011F20 #20011F

tetradic

#1F2001 #012012 #020120 #200110

square

#1F2001 #012012 #020120 #200110

split-complementary

#1F2001 #011020 #120120

monochromatic

#1D1E01 #1D1E01 #1F2001 #585B03 #929705

Accessibility & contrast

On white

16.60

#1F2001 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#1F2001 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2001

16.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2001	#FFFFFF	#000000	##FFFFFF
##1F2001	1.00	16.60	1.27	16.60
#FFFFFF	16.60	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#241E00

Deuteranopia (green-blind)

#241F02

Tritanopia (blue-blind)

#221D1A

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #1f2001;
/* rgb */ color: rgb(31, 32, 1);
/* oklch */ color: oklch(23.5% 0.050 111.4);

Tailwind

colors: {
  custom: {
    50: '#5a5b47',
    500: '#1f2001',
    950: '#000000',
  },
}

SCSS

$custom: #1f2001;
$custom-light: #5a5b47;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2001",
  "rgb": {
    "r": 31,
    "g": 32,
    "b": 1
  },
  "hsl": {
    "h": 61.935,
    "s": 93.939,
    "l": 6.471
  },
  "oklch": {
    "l": 0.23477,
    "c": 0.05008,
    "h": 111.4
  },
  "luminance": 0.01327
}

Semantic roles & 50–950 ramp

primary

#1F2001

secondary

#181567

accent

#29FF30

background

#F5F5F3

surface

#E9E9E5

border

#C5C5C1

text

#040400

muted

#797977

Preview Lab

Preview with #1F2001

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

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