#1F455C#1F455C

#1F455C is a dark, muted cyan. Relative luminance 0.053; OKLCH L 37.4% C 0.059 H 237.7°. Best body text is #FFFFFF at 10.17:1 contrast (WCAG AA passes).

Color values

HEX	#1F455C
RGB	rgb(31, 69, 92)
HSL	hsl(203, 50%, 24%)
HSV	hsv(203, 66%, 36%)
CMYK	cmyk(66.3%, 25%, 0%, 63.9%)
CIE-LAB	lab(27.63, -5.52, -17.66)
CIE-LCH	lch(27.63, 18.51, 252.65°)
OKLab	oklab(37.36% -0.0313 -0.0495)
OKLCH	oklch(37.36% 0.059 237.7)
XYZ	xyz(4.6242, 5.3198, 10.9063)
Luminance	0.0532 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F455C #5C361F

analogous

#1F5C55 #1F455C #1F275C

triadic

#1F455C #5C1F45 #455C1F

tetradic

#1F455C #551F5C #5C361F #275C1F

square

#1F455C #551F5C #5C361F #275C1F

split-complementary

#1F455C #5C1F27 #5C551F

monochromatic

#081117 #10232E #1F455C #2E678A #3E8AB8

Accessibility & contrast

On white

10.17

#1F455C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#1F455C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F455C

10.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F455C	#FFFFFF	#000000	##FFFFFF
##1F455C	1.00	10.17	2.06	10.17
#FFFFFF	10.17	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A455D

Deuteranopia (green-blind)

#323E5C

Tritanopia (blue-blind)

#004B4D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1f455c;
/* rgb */ color: rgb(31, 69, 92);
/* oklch */ color: oklch(37.4% 0.059 237.7);

Tailwind

colors: {
  custom: {
    50: '#61788a',
    500: '#1f455c',
    950: '#000000',
  },
}

SCSS

$custom: #1f455c;
$custom-light: #61788a;
$custom-dark: #000000;

JSON

{
  "hex": "#1f455c",
  "rgb": {
    "r": 31,
    "g": 69,
    "b": 92
  },
  "hsl": {
    "h": 202.623,
    "s": 49.593,
    "l": 24.118
  },
  "oklch": {
    "l": 0.37362,
    "c": 0.05857,
    "h": 237.7
  },
  "luminance": 0.0532
}

Semantic roles & 50–950 ramp

primary

#1F455C

secondary

#916246

accent

#834FD9

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#05090B

muted

#7A7B7C

Preview Lab

Preview with #1F455C

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

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