#1D397C#1D397C

#1D397C is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.5% C 0.119 H 264.2°. Best body text is #FFFFFF at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#1D397C
RGB	rgb(29, 57, 124)
HSL	hsl(222, 62%, 30%)
HSV	hsv(222, 77%, 49%)
CMYK	cmyk(76.6%, 54%, 0%, 51.4%)
CIE-LAB	lab(25.69, 14.94, -41.17)
CIE-LCH	lch(25.69, 43.80, 289.94°)
OKLab	oklab(36.47% -0.012 -0.1185)
OKLCH	oklch(36.47% 0.119 264.2)
XYZ	xyz(5.6066, 4.6421, 19.6654)
Luminance	0.0464 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D397C #7C601D

analogous

#1D687C #1D397C #311D7C

triadic

#1D397C #7C1D39 #397C1D

tetradic

#1D397C #7C1D68 #7C601D #1D7C31

square

#1D397C #7C1D68 #7C601D #1D7C31

split-complementary

#1D397C #7C311D #687C1D

monochromatic

#060B19 #11224A #1D397C #2950AE #416CD3

Accessibility & contrast

On white

10.89

#1D397C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#1D397C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D397C

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D397C	#FFFFFF	#000000	##FFFFFF
##1D397C	1.00	10.89	1.93	10.89
#FFFFFF	10.89	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C417E

Deuteranopia (green-blind)

#00397B

Tritanopia (blue-blind)

#004954

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1d397c;
/* rgb */ color: rgb(29, 57, 124);
/* oklch */ color: oklch(36.5% 0.119 264.2);

Tailwind

colors: {
  custom: {
    50: '#686ea2',
    500: '#1d397c',
    950: '#000000',
  },
}

SCSS

$custom: #1d397c;
$custom-light: #686ea2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d397c",
  "rgb": {
    "r": 29,
    "g": 57,
    "b": 124
  },
  "hsl": {
    "h": 222.316,
    "s": 62.092,
    "l": 30
  },
  "oklch": {
    "l": 0.36466,
    "c": 0.11907,
    "h": 264.2
  },
  "luminance": 0.04643
}

Semantic roles & 50–950 ramp

primary

#1D397C

secondary

#B09045

accent

#B543E5

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1D397C

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

Preview Lab → · Contrast checker → · Palette generator →