#1D437C#1D437C

#1D437C is a dark, moderate blue. Relative luminance 0.057; OKLCH L 38.8% C 0.106 H 258.5°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#1D437C
RGB	rgb(29, 67, 124)
HSL	hsl(216, 62%, 30%)
HSV	hsv(216, 77%, 49%)
CMYK	cmyk(76.6%, 46%, 0%, 51.4%)
CIE-LAB	lab(28.72, 7.97, -36.29)
CIE-LCH	lch(28.72, 37.16, 282.39°)
OKLab	oklab(38.79% -0.0211 -0.1039)
OKLCH	oklch(38.79% 0.106 258.5)
XYZ	xyz(6.1506, 5.7301, 19.8467)
Luminance	0.0573 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D437C #7C561D

analogous

#1D737C #1D437C #261D7C

triadic

#1D437C #7C1D43 #437C1D

tetradic

#1D437C #7C1D73 #7C561D #1D7C26

square

#1D437C #7C1D73 #7C561D #1D7C26

split-complementary

#1D437C #7C261D #737C1D

monochromatic

#060D19 #11284A #1D437C #295EAE #417BD3

Accessibility & contrast

On white

9.78

#1D437C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#1D437C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D437C

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D437C	#FFFFFF	#000000	##FFFFFF
##1D437C	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26487E

Deuteranopia (green-blind)

#14407B

Tritanopia (blue-blind)

#005059

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1d437c;
/* rgb */ color: rgb(29, 67, 124);
/* oklch */ color: oklch(38.8% 0.106 258.5);

Tailwind

colors: {
  custom: {
    50: '#6776a2',
    500: '#1d437c',
    950: '#000000',
  },
}

SCSS

$custom: #1d437c;
$custom-light: #6776a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d437c",
  "rgb": {
    "r": 29,
    "g": 67,
    "b": 124
  },
  "hsl": {
    "h": 216,
    "s": 62.092,
    "l": 30
  },
  "oklch": {
    "l": 0.38789,
    "c": 0.10604,
    "h": 258.5
  },
  "luminance": 0.05731
}

Semantic roles & 50–950 ramp

primary

#1D437C

secondary

#B08545

accent

#A443E5

background

#F6F7FA

surface

#EBEDF3

border

#C6C8CD

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1D437C

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

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