#1D3175#1D3175

#1D3175 is a dark, moderate blue. Relative luminance 0.037; OKLCH L 34.1% C 0.119 H 267.3°. Best body text is #FFFFFF at 12.01:1 contrast (WCAG AA passes).

Color values

HEX	#1D3175
RGB	rgb(29, 49, 117)
HSL	hsl(226, 60%, 29%)
HSV	hsv(226, 75%, 46%)
CMYK	cmyk(75.2%, 58.1%, 0%, 54.1%)
CIE-LAB	lab(22.80, 17.77, -41.42)
CIE-LCH	lch(22.80, 45.07, 293.22°)
OKLab	oklab(34.11% -0.0056 -0.1193)
OKLCH	oklch(34.11% 0.119 267.3)
XYZ	xyz(4.8148, 3.7417, 17.2946)
Luminance	0.0374 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3175 #75611D

analogous

#1D5D75 #1D3175 #351D75

triadic

#1D3175 #751D31 #31751D

tetradic

#1D3175 #751D5D #75611D #1D7535

square

#1D3175 #751D5D #75611D #1D7535

split-complementary

#1D3175 #75351D #5D751D

monochromatic

#060A19 #111C44 #1D3175 #2946A6 #3D5ECF

Accessibility & contrast

On white

12.01

#1D3175 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1D3175 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3175

12.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3175	#FFFFFF	#000000	##FFFFFF
##1D3175	1.00	12.01	1.75	12.01
#FFFFFF	12.01	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B77

Deuteranopia (green-blind)

#003374

Tritanopia (blue-blind)

#00424E

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1d3175;
/* rgb */ color: rgb(29, 49, 117);
/* oklch */ color: oklch(34.1% 0.119 267.3);

Tailwind

colors: {
  custom: {
    50: '#66689d',
    500: '#1d3175',
    950: '#000000',
  },
}

SCSS

$custom: #1d3175;
$custom-light: #66689d;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3175",
  "rgb": {
    "r": 29,
    "g": 49,
    "b": 117
  },
  "hsl": {
    "h": 226.364,
    "s": 60.274,
    "l": 28.627
  },
  "oklch": {
    "l": 0.34107,
    "c": 0.11947,
    "h": 267.3
  },
  "luminance": 0.03742
}

Semantic roles & 50–950 ramp

primary

#1D3175

secondary

#A99245

accent

#BF44E3

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #1D3175

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

Preview Lab → · Contrast checker → · Palette generator →