#1D407B#1D407B

#1D407B is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.0% C 0.108 H 260.2°. Best body text is #FFFFFF at 10.14:1 contrast (WCAG AA passes).

Color values

HEX	#1D407B
RGB	rgb(29, 64, 123)
HSL	hsl(218, 62%, 30%)
HSV	hsv(218, 76%, 48%)
CMYK	cmyk(76.4%, 48%, 0%, 51.8%)
CIE-LAB	lab(27.73, 9.64, -37.26)
CIE-LCH	lch(27.73, 38.48, 284.51°)
OKLab	oklab(38% -0.0185 -0.1068)
OKLCH	oklch(38% 0.108 260.2)
XYZ	xyz(5.9140, 5.3574, 19.4575)
Luminance	0.0536 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D407B #7B581D

analogous

#1D6F7B #1D407B #291D7B

triadic

#1D407B #7B1D40 #407B1D

tetradic

#1D407B #7B1D6F #7B581D #1D7B29

square

#1D407B #7B1D6F #7B581D #1D7B29

split-complementary

#1D407B #7B291D #6F7B1D

monochromatic

#060D19 #112649 #1D407B #295AAD #4077D2

Accessibility & contrast

On white

10.14

#1D407B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#1D407B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D407B

10.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D407B	#FFFFFF	#000000	##FFFFFF
##1D407B	1.00	10.14	2.07	10.14
#FFFFFF	10.14	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#21467D

Deuteranopia (green-blind)

#0B3D7A

Tritanopia (blue-blind)

#004E57

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1d407b;
/* rgb */ color: rgb(29, 64, 123);
/* oklch */ color: oklch(38.0% 0.108 260.2);

Tailwind

colors: {
  custom: {
    50: '#6774a1',
    500: '#1d407b',
    950: '#000000',
  },
}

SCSS

$custom: #1d407b;
$custom-light: #6774a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d407b",
  "rgb": {
    "r": 29,
    "g": 64,
    "b": 123
  },
  "hsl": {
    "h": 217.66,
    "s": 61.842,
    "l": 29.804
  },
  "oklch": {
    "l": 0.38003,
    "c": 0.1084,
    "h": 260.2
  },
  "luminance": 0.05358
}

Semantic roles & 50–950 ramp

primary

#1D407B

secondary

#AF8745

accent

#A943E5

background

#F6F7FA

surface

#EBEDF3

border

#C6C8CD

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1D407B

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

Preview Lab → · Contrast checker → · Palette generator →