#1D375F#1D375F

#1D375F is a dark, moderate blue. Relative luminance 0.038; OKLCH L 33.8% C 0.078 H 258.8°. Best body text is #FFFFFF at 11.90:1 contrast (WCAG AA passes).

Color values

HEX	#1D375F
RGB	rgb(29, 55, 95)
HSL	hsl(216, 53%, 24%)
HSV	hsv(216, 69%, 37%)
CMYK	cmyk(69.5%, 42.1%, 0%, 62.7%)
CIE-LAB	lab(23.07, 4.63, -26.78)
CIE-LCH	lch(23.07, 27.18, 279.80°)
OKLab	oklab(33.81% -0.0151 -0.0762)
OKLCH	oklch(33.81% 0.078 258.8)
XYZ	xyz(3.9377, 3.8194, 11.3540)
Luminance	0.0382 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D375F #5F451D

analogous

#1D585F #1D375F #241D5F

triadic

#1D375F #5F1D37 #375F1D

tetradic

#1D375F #5F1D58 #5F451D #1D5F24

square

#1D375F #5F1D58 #5F451D #1D5F24

split-complementary

#1D375F #5F241D #585F1D

monochromatic

#070E17 #0F1C30 #1D375F #2B528E #3A6DBD

Accessibility & contrast

On white

11.90

#1D375F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#1D375F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D375F

11.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D375F	#FFFFFF	#000000	##FFFFFF
##1D375F	1.00	11.90	1.76	11.90
#FFFFFF	11.90	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#253A61

Deuteranopia (green-blind)

#1C345E

Tritanopia (blue-blind)

#004046

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1d375f;
/* rgb */ color: rgb(29, 55, 95);
/* oklch */ color: oklch(33.8% 0.078 258.8);

Tailwind

colors: {
  custom: {
    50: '#616d8c',
    500: '#1d375f',
    950: '#000000',
  },
}

SCSS

$custom: #1d375f;
$custom-light: #616d8c;
$custom-dark: #000000;

JSON

{
  "hex": "#1d375f",
  "rgb": {
    "r": 29,
    "g": 55,
    "b": 95
  },
  "hsl": {
    "h": 216.364,
    "s": 53.226,
    "l": 24.314
  },
  "oklch": {
    "l": 0.33807,
    "c": 0.07769,
    "h": 258.8
  },
  "luminance": 0.0382
}

Semantic roles & 50–950 ramp

primary

#1D375F

secondary

#947444

accent

#A34BDD

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#05070C

muted

#7A7A7D

Preview Lab

Preview with #1D375F

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

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