#1F548F#1F548F

#1F548F is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 44.2% C 0.112 H 253.7°. Best body text is #FFFFFF at 7.71:1 contrast (WCAG AA passes).

Color values

HEX	#1F548F
RGB	rgb(31, 84, 143)
HSL	hsl(212, 64%, 34%)
HSV	hsv(212, 78%, 56%)
CMYK	cmyk(78.3%, 41.3%, 0%, 43.9%)
CIE-LAB	lab(35.23, 4.44, -37.61)
CIE-LCH	lch(35.23, 37.87, 276.74°)
OKLab	oklab(44.25% -0.0315 -0.1074)
OKLCH	oklch(44.25% 0.112 253.7)
XYZ	xyz(8.6915, 8.6141, 27.1859)
Luminance	0.0862 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F548F #8F5A1F

analogous

#1F8C8F #1F548F #221F8F

triadic

#1F548F #8F1F54 #548F1F

tetradic

#1F548F #8F1F8C #8F5A1F #1F8F22

square

#1F548F #8F1F8C #8F5A1F #1F8F22

split-complementary

#1F548F #8F221F #8C8F1F

monochromatic

#09192A #14365D #1F548F #2A72C1 #4F91D9

Accessibility & contrast

On white

7.71

#1F548F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#1F548F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F548F

7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F548F	#FFFFFF	#000000	##FFFFFF
##1F548F	1.00	7.71	2.72	7.71
#FFFFFF	7.71	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#385891

Deuteranopia (green-blind)

#254E8E

Tritanopia (blue-blind)

#00626A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1f548f;
/* rgb */ color: rgb(31, 84, 143);
/* oklch */ color: oklch(44.2% 0.112 253.7);

Tailwind

colors: {
  custom: {
    50: '#6c83b0',
    500: '#1f548f',
    950: '#000000',
  },
}

SCSS

$custom: #1f548f;
$custom-light: #6c83b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f548f",
  "rgb": {
    "r": 31,
    "g": 84,
    "b": 143
  },
  "hsl": {
    "h": 211.607,
    "s": 64.368,
    "l": 34.118
  },
  "oklch": {
    "l": 0.44248,
    "c": 0.11196,
    "h": 253.7
  },
  "luminance": 0.08615
}

Semantic roles & 50–950 ramp

primary

#1F548F

secondary

#BC884E

accent

#9840E7

background

#F6F8FA

surface

#ECEFF5

border

#C7CACF

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #1F548F

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

Preview Lab → · Contrast checker → · Palette generator →