#1C427F#1C427F

#1C427F is a dark, moderate blue. Relative luminance 0.057; OKLCH L 38.7% C 0.112 H 259.5°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#1C427F
RGB	rgb(28, 66, 127)
HSL	hsl(217, 64%, 30%)
HSV	hsv(217, 78%, 50%)
CMYK	cmyk(78%, 48%, 0%, 50.2%)
CIE-LAB	lab(28.58, 9.74, -38.40)
CIE-LCH	lch(28.58, 39.62, 284.23°)
OKLab	oklab(38.73% -0.0203 -0.1102)
OKLCH	oklch(38.73% 0.112 259.5)
XYZ	xyz(6.2565, 5.6749, 20.8402)
Luminance	0.0568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C427F #7F591C

analogous

#1C737F #1C427F #281C7F

triadic

#1C427F #7F1C42 #427F1C

tetradic

#1C427F #7F1C73 #7F591C #1C7F28

square

#1C427F #7F1C73 #7F591C #1C7F28

split-complementary

#1C427F #7F281C #737F1C

monochromatic

#060E1B #11284D #1C427F #275CB1 #4079D5

Accessibility & contrast

On white

9.84

#1C427F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#1C427F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C427F

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C427F	#FFFFFF	#000000	##FFFFFF
##1C427F	1.00	9.84	2.14	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224881

Deuteranopia (green-blind)

#093F7E

Tritanopia (blue-blind)

#00505A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1c427f;
/* rgb */ color: rgb(28, 66, 127);
/* oklch */ color: oklch(38.7% 0.112 259.5);

Tailwind

colors: {
  custom: {
    50: '#6875a4',
    500: '#1c427f',
    950: '#000000',
  },
}

SCSS

$custom: #1c427f;
$custom-light: #6875a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1c427f",
  "rgb": {
    "r": 28,
    "g": 66,
    "b": 127
  },
  "hsl": {
    "h": 216.97,
    "s": 63.871,
    "l": 30.392
  },
  "oklch": {
    "l": 0.38733,
    "c": 0.11202,
    "h": 259.5
  },
  "luminance": 0.05676
}

Semantic roles & 50–950 ramp

primary

#1C427F

secondary

#B38844

accent

#A741E7

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1C427F

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

Preview Lab → · Contrast checker → · Palette generator →