#1C397E#1C397E

#1C397E is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.6% C 0.122 H 264.1°. Best body text is #FFFFFF at 10.85:1 contrast (WCAG AA passes).

Color values

HEX	#1C397E
RGB	rgb(28, 57, 126)
HSL	hsl(222, 64%, 30%)
HSV	hsv(222, 78%, 49%)
CMYK	cmyk(77.8%, 54.8%, 0%, 50.6%)
CIE-LAB	lab(25.80, 15.62, -42.26)
CIE-LCH	lch(25.80, 45.05, 290.28°)
OKLab	oklab(36.59% -0.0126 -0.1217)
OKLCH	oklch(36.59% 0.122 264.1)
XYZ	xyz(5.7066, 4.6789, 20.3370)
Luminance	0.0468 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C397E #7E611C

analogous

#1C6A7E #1C397E #301C7E

triadic

#1C397E #7E1C39 #397E1C

tetradic

#1C397E #7E1C6A #7E611C #1C7E30

square

#1C397E #7E1C6A #7E611C #1C7E30

split-complementary

#1C397E #7E301C #6A7E1C

monochromatic

#060C1A #11224C #1C397E #2750B0 #406CD5

Accessibility & contrast

On white

10.85

#1C397E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#1C397E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C397E

10.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C397E	#FFFFFF	#000000	##FFFFFF
##1C397E	1.00	10.85	1.94	10.85
#FFFFFF	10.85	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#074280

Deuteranopia (green-blind)

#00397D

Tritanopia (blue-blind)

#004A55

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1c397e;
/* rgb */ color: rgb(28, 57, 126);
/* oklch */ color: oklch(36.6% 0.122 264.1);

Tailwind

colors: {
  custom: {
    50: '#686ea4',
    500: '#1c397e',
    950: '#000000',
  },
}

SCSS

$custom: #1c397e;
$custom-light: #686ea4;
$custom-dark: #000000;

JSON

{
  "hex": "#1c397e",
  "rgb": {
    "r": 28,
    "g": 57,
    "b": 126
  },
  "hsl": {
    "h": 222.245,
    "s": 63.636,
    "l": 30.196
  },
  "oklch": {
    "l": 0.36586,
    "c": 0.12233,
    "h": 264.1
  },
  "luminance": 0.04679
}

Semantic roles & 50–950 ramp

primary

#1C397E

secondary

#B29144

accent

#B641E7

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1C397E

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

Preview Lab → · Contrast checker → · Palette generator →