#1C437A#1C437A

#1C437A is a dark, moderate blue. Relative luminance 0.057; OKLCH L 38.6% C 0.103 H 257.6°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#1C437A
RGB	rgb(28, 67, 122)
HSL	hsl(215, 63%, 29%)
HSV	hsv(215, 77%, 48%)
CMYK	cmyk(77%, 45.1%, 0%, 52.2%)
CIE-LAB	lab(28.55, 7.02, -35.31)
CIE-LCH	lch(28.55, 36.00, 281.25°)
OKLab	oklab(38.61% -0.0223 -0.101)
OKLCH	oklch(38.61% 0.103 257.6)
XYZ	xyz(5.9976, 5.6657, 19.1861)
Luminance	0.0567 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C437A #7A531C

analogous

#1C727A #1C437A #241C7A

triadic

#1C437A #7A1C43 #437A1C

tetradic

#1C437A #7A1C72 #7A531C #1C7A24

square

#1C437A #7A1C72 #7A531C #1C7A24

split-complementary

#1C437A #7A241C #727A1C

monochromatic

#060E19 #112848 #1C437A #275EAC #3E7CD3

Accessibility & contrast

On white

9.84

#1C437A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#1C437A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C437A

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C437A	#FFFFFF	#000000	##FFFFFF
##1C437A	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28487C

Deuteranopia (green-blind)

#163F79

Tritanopia (blue-blind)

#005058

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1c437a;
/* rgb */ color: rgb(28, 67, 122);
/* oklch */ color: oklch(38.6% 0.103 257.6);

Tailwind

colors: {
  custom: {
    50: '#6676a1',
    500: '#1c437a',
    950: '#000000',
  },
}

SCSS

$custom: #1c437a;
$custom-light: #6676a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c437a",
  "rgb": {
    "r": 28,
    "g": 67,
    "b": 122
  },
  "hsl": {
    "h": 215.106,
    "s": 62.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.38607,
    "c": 0.10347,
    "h": 257.6
  },
  "luminance": 0.05666
}

Semantic roles & 50–950 ramp

primary

#1C437A

secondary

#AE8244

accent

#A242E6

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#07080F

muted

#7A7B7E

Preview Lab

Preview with #1C437A

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

Preview Lab → · Contrast checker → · Palette generator →