#1F4663#1F4663

#1F4663 is a dark, moderate cyan. Relative luminance 0.056; OKLCH L 38.0% C 0.067 H 243.3°. Best body text is #FFFFFF at 9.93:1 contrast (WCAG AA passes).

Color values

HEX	#1F4663
RGB	rgb(31, 70, 99)
HSL	hsl(206, 52%, 25%)
HSV	hsv(206, 69%, 39%)
CMYK	cmyk(68.7%, 29.3%, 0%, 61.2%)
CIE-LAB	lab(28.31, -3.55, -21.11)
CIE-LCH	lch(28.31, 21.40, 260.46°)
OKLab	oklab(38.01% -0.0298 -0.0594)
OKLCH	oklch(38.01% 0.067 243.3)
XYZ	xyz(5.0065, 5.5720, 12.6136)
Luminance	0.0557 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4663 #633C1F

analogous

#1F635E #1F4663 #1F2463

triadic

#1F4663 #631F46 #46631F

tetradic

#1F4663 #5E1F63 #633C1F #24631F

square

#1F4663 #5E1F63 #633C1F #24631F

split-complementary

#1F4663 #631F24 #635E1F

monochromatic

#071017 #102534 #1F4663 #2E6792 #3C88C0

Accessibility & contrast

On white

9.93

#1F4663 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#1F4663 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4663

9.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4663	#FFFFFF	#000000	##FFFFFF
##1F4663	1.00	9.93	2.11	9.93
#FFFFFF	9.93	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#394664

Deuteranopia (green-blind)

#304062

Tritanopia (blue-blind)

#004D50

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1f4663;
/* rgb */ color: rgb(31, 70, 99);
/* oklch */ color: oklch(38.0% 0.067 243.3);

Tailwind

colors: {
  custom: {
    50: '#63798f',
    500: '#1f4663',
    950: '#000000',
  },
}

SCSS

$custom: #1f4663;
$custom-light: #63798f;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4663",
  "rgb": {
    "r": 31,
    "g": 70,
    "b": 99
  },
  "hsl": {
    "h": 205.588,
    "s": 52.308,
    "l": 25.49
  },
  "oklch": {
    "l": 0.38013,
    "c": 0.06652,
    "h": 243.3
  },
  "luminance": 0.05572
}

Semantic roles & 50–950 ramp

primary

#1F4663

secondary

#986946

accent

#894CDC

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#06090C

muted

#7A7B7D

Preview Lab

Preview with #1F4663

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

Preview Lab → · Contrast checker → · Palette generator →