#1B458A#1B458A

#1B458A is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.2% C 0.124 H 259.9°. Best body text is #FFFFFF at 9.27:1 contrast (WCAG AA passes).

Color values

HEX	#1B458A
RGB	rgb(27, 69, 138)
HSL	hsl(217, 67%, 32%)
HSV	hsv(217, 80%, 54%)
CMYK	cmyk(80.4%, 50%, 0%, 45.9%)
CIE-LAB	lab(30.21, 12.03, -42.60)
CIE-LCH	lch(30.21, 44.26, 285.77°)
OKLab	oklab(40.23% -0.0218 -0.1225)
OKLCH	oklch(40.23% 0.124 259.9)
XYZ	xyz(7.1659, 6.3234, 24.8827)
Luminance	0.0632 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B458A #8A601B

analogous

#1B7D8A #1B458A #281B8A

triadic

#1B458A #8A1B45 #458A1B

tetradic

#1B458A #8A1B7D #8A601B #1B8A28

square

#1B458A #8A1B7D #8A601B #1B8A28

split-complementary

#1B458A #8A281B #7D8A1B

monochromatic

#071224 #112B57 #1B458A #255FBD #457DDB

Accessibility & contrast

On white

9.27

#1B458A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#1B458A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B458A

9.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B458A	#FFFFFF	#000000	##FFFFFF
##1B458A	1.00	9.27	2.26	9.27
#FFFFFF	9.27	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D4D8D

Deuteranopia (green-blind)

#004289

Tritanopia (blue-blind)

#005661

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1b458a;
/* rgb */ color: rgb(27, 69, 138);
/* oklch */ color: oklch(40.2% 0.124 259.9);

Tailwind

colors: {
  custom: {
    50: '#6a78ad',
    500: '#1b458a',
    950: '#000000',
  },
}

SCSS

$custom: #1b458a;
$custom-light: #6a78ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1b458a",
  "rgb": {
    "r": 27,
    "g": 69,
    "b": 138
  },
  "hsl": {
    "h": 217.297,
    "s": 67.273,
    "l": 32.353
  },
  "oklch": {
    "l": 0.40226,
    "c": 0.12438,
    "h": 259.9
  },
  "luminance": 0.06324
}

Semantic roles & 50–950 ramp

primary

#1B458A

secondary

#BC8F45

accent

#A93EEA

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1B458A

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

Preview Lab → · Contrast checker → · Palette generator →