#1F435F#1F435F

#1F435F is a dark, moderate cyan. Relative luminance 0.051; OKLCH L 37.0% C 0.064 H 244.3°. Best body text is #FFFFFF at 10.36:1 contrast (WCAG AA passes).

Color values

HEX	#1F435F
RGB	rgb(31, 67, 95)
HSL	hsl(206, 51%, 25%)
HSV	hsv(206, 67%, 37%)
CMYK	cmyk(67.4%, 29.5%, 0%, 62.7%)
CIE-LAB	lab(27.11, -3.10, -20.41)
CIE-LCH	lch(27.11, 20.64, 261.36°)
OKLab	oklab(37% -0.0277 -0.0575)
OKLCH	oklch(37% 0.064 244.3)
XYZ	xyz(4.6370, 5.1314, 11.5703)
Luminance	0.0513 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F435F #5F3B1F

analogous

#1F5F5B #1F435F #1F235F

triadic

#1F435F #5F1F43 #435F1F

tetradic

#1F435F #5B1F5F #5F3B1F #235F1F

square

#1F435F #5B1F5F #5F3B1F #235F1F

split-complementary

#1F435F #5F1F23 #5F5B1F

monochromatic

#081017 #102231 #1F435F #2E648D #3D84BB

Accessibility & contrast

On white

10.36

#1F435F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#1F435F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F435F

10.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F435F	#FFFFFF	#000000	##FFFFFF
##1F435F	1.00	10.36	2.03	10.36
#FFFFFF	10.36	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#374460

Deuteranopia (green-blind)

#2E3D5E

Tritanopia (blue-blind)

#004A4D

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1f435f;
/* rgb */ color: rgb(31, 67, 95);
/* oklch */ color: oklch(37.0% 0.064 244.3);

Tailwind

colors: {
  custom: {
    50: '#62778c',
    500: '#1f435f',
    950: '#000000',
  },
}

SCSS

$custom: #1f435f;
$custom-light: #62778c;
$custom-dark: #000000;

JSON

{
  "hex": "#1f435f",
  "rgb": {
    "r": 31,
    "g": 67,
    "b": 95
  },
  "hsl": {
    "h": 206.25,
    "s": 50.794,
    "l": 24.706
  },
  "oklch": {
    "l": 0.36998,
    "c": 0.06378,
    "h": 244.3
  },
  "luminance": 0.05132
}

Semantic roles & 50–950 ramp

primary

#1F435F

secondary

#946846

accent

#8B4EDA

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#05080C

muted

#7A7B7D

Preview Lab

Preview with #1F435F

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

Preview Lab → · Contrast checker → · Palette generator →