#1F5378#1F5378

#1F5378 is a dark, moderate cyan. Relative luminance 0.078; OKLCH L 42.6% C 0.082 H 243.2°. Best body text is #FFFFFF at 8.18:1 contrast (WCAG AA passes).

Color values

HEX	#1F5378
RGB	rgb(31, 83, 120)
HSL	hsl(205, 59%, 30%)
HSV	hsv(205, 74%, 47%)
CMYK	cmyk(74.2%, 30.8%, 0%, 52.9%)
CIE-LAB	lab(33.63, -3.88, -26.00)
CIE-LCH	lch(33.63, 26.29, 261.51°)
OKLab	oklab(42.58% -0.0372 -0.0735)
OKLCH	oklch(42.58% 0.082 243.2)
XYZ	xyz(7.0472, 7.8331, 18.9062)
Luminance	0.0783 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5378 #78441F

analogous

#1F7871 #1F5378 #1F2778

triadic

#1F5378 #781F53 #53781F

tetradic

#1F5378 #711F78 #78441F #27781F

square

#1F5378 #711F78 #78441F #27781F

split-complementary

#1F5378 #781F27 #78711F

monochromatic

#061118 #123147 #1F5378 #2C75A9 #4394CE

Accessibility & contrast

On white

8.18

#1F5378 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#1F5378 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F5378

8.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5378	#FFFFFF	#000000	##FFFFFF
##1F5378	1.00	8.18	2.57	8.18
#FFFFFF	8.18	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#42547A

Deuteranopia (green-blind)

#364B77

Tritanopia (blue-blind)

#005C60

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1f5378;
/* rgb */ color: rgb(31, 83, 120);
/* oklch */ color: oklch(42.6% 0.082 243.2);

Tailwind

colors: {
  custom: {
    50: '#67839f',
    500: '#1f5378',
    950: '#000000',
  },
}

SCSS

$custom: #1f5378;
$custom-light: #67839f;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5378",
  "rgb": {
    "r": 31,
    "g": 83,
    "b": 120
  },
  "hsl": {
    "h": 204.944,
    "s": 58.94,
    "l": 29.608
  },
  "oklch": {
    "l": 0.42575,
    "c": 0.08238,
    "h": 243.2
  },
  "luminance": 0.07834
}

Semantic roles & 50–950 ramp

primary

#1F5378

secondary

#AB7147

accent

#8746E2

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#070A0E

muted

#7A7C7E

Preview Lab

Preview with #1F5378

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

Preview Lab → · Contrast checker → · Palette generator →