#1D457F#1D457F

#1D457F is a dark, moderate blue. Relative luminance 0.060; OKLCH L 39.5% C 0.108 H 258.0°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#1D457F
RGB	rgb(29, 69, 127)
HSL	hsl(216, 63%, 31%)
HSV	hsv(216, 77%, 50%)
CMYK	cmyk(77.2%, 45.7%, 0%, 50.2%)
CIE-LAB	lab(29.54, 7.82, -36.86)
CIE-LCH	lch(29.54, 37.68, 281.97°)
OKLab	oklab(39.48% -0.0224 -0.1056)
OKLCH	oklch(39.48% 0.108 258)
XYZ	xyz(6.4642, 6.0490, 20.9015)
Luminance	0.0605 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D457F #7F571D

analogous

#1D767F #1D457F #261D7F

triadic

#1D457F #7F1D45 #457F1D

tetradic

#1D457F #7F1D76 #7F571D #1D7F26

square

#1D457F #7F1D76 #7F571D #1D7F26

split-complementary

#1D457F #7F261D #767F1D

monochromatic

#060F1B #122A4D #1D457F #2860B1 #427ED4

Accessibility & contrast

On white

9.50

#1D457F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#1D457F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D457F

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D457F	#FFFFFF	#000000	##FFFFFF
##1D457F	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#284A81

Deuteranopia (green-blind)

#15417E

Tritanopia (blue-blind)

#00535B

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1d457f;
/* rgb */ color: rgb(29, 69, 127);
/* oklch */ color: oklch(39.5% 0.108 258.0);

Tailwind

colors: {
  custom: {
    50: '#6878a4',
    500: '#1d457f',
    950: '#000000',
  },
}

SCSS

$custom: #1d457f;
$custom-light: #6878a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1d457f",
  "rgb": {
    "r": 29,
    "g": 69,
    "b": 127
  },
  "hsl": {
    "h": 215.51,
    "s": 62.821,
    "l": 30.588
  },
  "oklch": {
    "l": 0.39483,
    "c": 0.10791,
    "h": 258
  },
  "luminance": 0.0605
}

Semantic roles & 50–950 ramp

primary

#1D457F

secondary

#B28645

accent

#A342E6

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1D457F

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

Preview Lab → · Contrast checker → · Palette generator →