#1D458B#1D458B

#1D458B is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.4% C 0.125 H 260.7°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#1D458B
RGB	rgb(29, 69, 139)
HSL	hsl(218, 65%, 33%)
HSV	hsv(218, 79%, 55%)
CMYK	cmyk(79.1%, 50.4%, 0%, 45.5%)
CIE-LAB	lab(30.35, 12.67, -42.99)
CIE-LCH	lch(30.35, 44.81, 286.43°)
OKLab	oklab(40.37% -0.0202 -0.1236)
OKLCH	oklch(40.37% 0.125 260.7)
XYZ	xyz(7.2933, 6.3807, 25.2683)
Luminance	0.0638 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D458B #8B631D

analogous

#1D7C8B #1D458B #2C1D8B

triadic

#1D458B #8B1D45 #458B1D

tetradic

#1D458B #8B1D7C #8B631D #1D8B2C

square

#1D458B #8B1D7C #8B631D #1D8B2C

split-complementary

#1D458B #8B2C1D #7C8B1D

monochromatic

#081326 #122C58 #1D458B #285EBE #497ED9

Accessibility & contrast

On white

9.23

#1D458B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#1D458B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D458B

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D458B	#FFFFFF	#000000	##FFFFFF
##1D458B	1.00	9.23	2.28	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C4D8E

Deuteranopia (green-blind)

#00438A

Tritanopia (blue-blind)

#005661

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1d458b;
/* rgb */ color: rgb(29, 69, 139);
/* oklch */ color: oklch(40.4% 0.125 260.7);

Tailwind

colors: {
  custom: {
    50: '#6b78ad',
    500: '#1d458b',
    950: '#000000',
  },
}

SCSS

$custom: #1d458b;
$custom-light: #6b78ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1d458b",
  "rgb": {
    "r": 29,
    "g": 69,
    "b": 139
  },
  "hsl": {
    "h": 218.182,
    "s": 65.476,
    "l": 32.941
  },
  "oklch": {
    "l": 0.40374,
    "c": 0.12522,
    "h": 260.7
  },
  "luminance": 0.06382
}

Semantic roles & 50–950 ramp

primary

#1D458B

secondary

#BB9249

accent

#AB3FE8

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1D458B

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

Preview Lab → · Contrast checker → · Palette generator →