#1B2E7D#1B2E7D

#1B2E7D is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.1% C 0.136 H 267.9°. Best body text is #FFFFFF at 12.11:1 contrast (WCAG AA passes).

Color values

HEX	#1B2E7D
RGB	rgb(27, 46, 125)
HSL	hsl(228, 64%, 30%)
HSV	hsv(228, 78%, 49%)
CMYK	cmyk(78.4%, 63.2%, 0%, 51%)
CIE-LAB	lab(22.54, 22.83, -46.93)
CIE-LCH	lch(22.54, 52.19, 295.94°)
OKLab	oklab(34.1% -0.005 -0.1356)
OKLCH	oklch(34.1% 0.136 267.9)
XYZ	xyz(5.1294, 3.6671, 19.8355)
Luminance	0.0367 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2E7D #7D6A1B

analogous

#1B5F7D #1B2E7D #391B7D

triadic

#1B2E7D #7D1B2E #2E7D1B

tetradic

#1B2E7D #7D1B5F #7D6A1B #1B7D39

square

#1B2E7D #7D1B5F #7D6A1B #1B7D39

split-complementary

#1B2E7D #7D391B #5F7D1B

monochromatic

#050919 #101B4B #1B2E7D #2641AF #3D5BD5

Accessibility & contrast

On white

12.11

#1B2E7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#1B2E7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2E7D

12.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2E7D	#FFFFFF	#000000	##FFFFFF
##1B2E7D	1.00	12.11	1.73	12.11
#FFFFFF	12.11	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B80

Deuteranopia (green-blind)

#00317B

Tritanopia (blue-blind)

#004251

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1b2e7d;
/* rgb */ color: rgb(27, 46, 125);
/* oklch */ color: oklch(34.1% 0.136 267.9);

Tailwind

colors: {
  custom: {
    50: '#6866a3',
    500: '#1b2e7d',
    950: '#000000',
  },
}

SCSS

$custom: #1b2e7d;
$custom-light: #6866a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2e7d",
  "rgb": {
    "r": 27,
    "g": 46,
    "b": 125
  },
  "hsl": {
    "h": 228.367,
    "s": 64.474,
    "l": 29.804
  },
  "oklch": {
    "l": 0.341,
    "c": 0.1357,
    "h": 267.9
  },
  "luminance": 0.03668
}

Semantic roles & 50–950 ramp

primary

#1B2E7D

secondary

#B19C43

accent

#C740E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1B2E7D

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

Preview Lab → · Contrast checker → · Palette generator →