#1D437E#1D437E

#1D437E is a dark, moderate blue. Relative luminance 0.058; OKLCH L 38.9% C 0.109 H 259.0°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#1D437E
RGB	rgb(29, 67, 126)
HSL	hsl(216, 63%, 30%)
HSV	hsv(216, 77%, 49%)
CMYK	cmyk(77%, 46.8%, 0%, 50.6%)
CIE-LAB	lab(28.85, 8.78, -37.33)
CIE-LCH	lch(28.85, 38.35, 283.24°)
OKLab	oklab(38.93% -0.0207 -0.107)
OKLCH	oklch(38.93% 0.109 259)
XYZ	xyz(6.2784, 5.7812, 20.5196)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D437E #7E581D

analogous

#1D737E #1D437E #271D7E

triadic

#1D437E #7E1D43 #437E1D

tetradic

#1D437E #7E1D73 #7E581D #1D7E27

square

#1D437E #7E1D73 #7E581D #1D7E27

split-complementary

#1D437E #7E271D #737E1D

monochromatic

#060E1B #12294C #1D437E #285DB0 #427BD3

Accessibility & contrast

On white

9.74

#1D437E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#1D437E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D437E

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D437E	#FFFFFF	#000000	##FFFFFF
##1D437E	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#254980

Deuteranopia (green-blind)

#10407D

Tritanopia (blue-blind)

#00515A

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1d437e;
/* rgb */ color: rgb(29, 67, 126);
/* oklch */ color: oklch(38.9% 0.109 259.0);

Tailwind

colors: {
  custom: {
    50: '#6876a4',
    500: '#1d437e',
    950: '#000000',
  },
}

SCSS

$custom: #1d437e;
$custom-light: #6876a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1d437e",
  "rgb": {
    "r": 29,
    "g": 67,
    "b": 126
  },
  "hsl": {
    "h": 216.495,
    "s": 62.581,
    "l": 30.392
  },
  "oklch": {
    "l": 0.38934,
    "c": 0.10896,
    "h": 259
  },
  "luminance": 0.05782
}

Semantic roles & 50–950 ramp

primary

#1D437E

secondary

#B18745

accent

#A642E6

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1D437E

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

Preview Lab → · Contrast checker → · Palette generator →