#1C437D#1C437D

#1C437D is a dark, moderate blue. Relative luminance 0.057; OKLCH L 38.8% C 0.108 H 258.4°. Best body text is #FFFFFF at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#1C437D
RGB	rgb(28, 67, 125)
HSL	hsl(216, 63%, 30%)
HSV	hsv(216, 78%, 49%)
CMYK	cmyk(77.6%, 46.4%, 0%, 51%)
CIE-LAB	lab(28.75, 8.24, -36.87)
CIE-LCH	lch(28.75, 37.78, 282.60°)
OKLab	oklab(38.82% -0.0216 -0.1056)
OKLCH	oklch(38.82% 0.108 258.4)
XYZ	xyz(6.1864, 5.7412, 20.1802)
Luminance	0.0574 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C437D #7D561C

analogous

#1C747D #1C437D #251C7D

triadic

#1C437D #7D1C43 #437D1C

tetradic

#1C437D #7D1C74 #7D561C #1C7D25

square

#1C437D #7D1C74 #7D561C #1C7D25

split-complementary

#1C437D #7D251C #747D1C

monochromatic

#060D19 #11284B #1C437D #275EAF #3F7BD4

Accessibility & contrast

On white

9.77

#1C437D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#1C437D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C437D

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C437D	#FFFFFF	#000000	##FFFFFF
##1C437D	1.00	9.77	2.15	9.77
#FFFFFF	9.77	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25497F

Deuteranopia (green-blind)

#11407C

Tritanopia (blue-blind)

#00515A

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1c437d;
/* rgb */ color: rgb(28, 67, 125);
/* oklch */ color: oklch(38.8% 0.108 258.4);

Tailwind

colors: {
  custom: {
    50: '#6776a3',
    500: '#1c437d',
    950: '#000000',
  },
}

SCSS

$custom: #1c437d;
$custom-light: #6776a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c437d",
  "rgb": {
    "r": 28,
    "g": 67,
    "b": 125
  },
  "hsl": {
    "h": 215.876,
    "s": 63.399,
    "l": 30
  },
  "oklch": {
    "l": 0.38823,
    "c": 0.10785,
    "h": 258.4
  },
  "luminance": 0.05742
}

Semantic roles & 50–950 ramp

primary

#1C437D

secondary

#B18544

accent

#A441E6

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1C437D

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

Preview Lab → · Contrast checker → · Palette generator →