#1F4D63#1F4D63

#1F4D63 is a dark, moderate cyan. Relative luminance 0.065; OKLCH L 39.9% C 0.062 H 232.0°. Best body text is #FFFFFF at 9.13:1 contrast (WCAG AA passes).

Color values

HEX	#1F4D63
RGB	rgb(31, 77, 99)
HSL	hsl(199, 52%, 25%)
HSV	hsv(199, 69%, 39%)
CMYK	cmyk(68.7%, 22.2%, 0%, 61.2%)
CIE-LAB	lab(30.64, -7.98, -17.48)
CIE-LCH	lch(30.64, 19.22, 245.45°)
OKLab	oklab(39.86% -0.0382 -0.0489)
OKLCH	oklch(39.86% 0.062 232)
XYZ	xyz(5.4702, 6.4993, 12.7682)
Luminance	0.0650 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4D63 #63351F

analogous

#1F6357 #1F4D63 #1F2B63

triadic

#1F4D63 #631F4D #4D631F

tetradic

#1F4D63 #571F63 #63351F #2B631F

square

#1F4D63 #571F63 #63351F #2B631F

split-complementary

#1F4D63 #631F2B #63571F

monochromatic

#071217 #102934 #1F4D63 #2E7192 #3C95C0

Accessibility & contrast

On white

9.13

#1F4D63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#1F4D63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4D63

9.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4D63	#FFFFFF	#000000	##FFFFFF
##1F4D63	1.00	9.13	2.30	9.13
#FFFFFF	9.13	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#424C64

Deuteranopia (green-blind)

#394563

Tritanopia (blue-blind)

#005354

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1f4d63;
/* rgb */ color: rgb(31, 77, 99);
/* oklch */ color: oklch(39.9% 0.062 232.0);

Tailwind

colors: {
  custom: {
    50: '#637e8f',
    500: '#1f4d63',
    950: '#000000',
  },
}

SCSS

$custom: #1f4d63;
$custom-light: #637e8f;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4d63",
  "rgb": {
    "r": 31,
    "g": 77,
    "b": 99
  },
  "hsl": {
    "h": 199.412,
    "s": 52.308,
    "l": 25.49
  },
  "oklch": {
    "l": 0.39864,
    "c": 0.06208,
    "h": 232
  },
  "luminance": 0.065
}

Semantic roles & 50–950 ramp

primary

#1F4D63

secondary

#986146

accent

#7B4CDC

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#060A0C

muted

#7A7C7D

Preview Lab

Preview with #1F4D63

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

Preview Lab → · Contrast checker → · Palette generator →