#1B296B#1B296B

#1B296B is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.4% C 0.116 H 269.4°. Best body text is #FFFFFF at 13.32:1 contrast (WCAG AA passes).

Color values

HEX	#1B296B
RGB	rgb(27, 41, 107)
HSL	hsl(230, 60%, 26%)
HSV	hsv(230, 75%, 42%)
CMYK	cmyk(74.8%, 61.7%, 0%, 58%)
CIE-LAB	lab(19.56, 19.16, -40.26)
CIE-LCH	lch(19.56, 44.58, 295.46°)
OKLab	oklab(31.39% -0.0012 -0.1161)
OKLCH	oklch(31.39% 0.116 269.4)
XYZ	xyz(3.8979, 2.8800, 14.2575)
Luminance	0.0288 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B296B #6B5D1B

analogous

#1B516B #1B296B #351B6B

triadic

#1B296B #6B1B29 #296B1B

tetradic

#1B296B #6B1B51 #6B5D1B #1B6B35

square

#1B296B #6B1B51 #6B5D1B #1B6B35

split-complementary

#1B296B #6B351B #516B1B

monochromatic

#060918 #0F163A #1B296B #273C9C #354FCC

Accessibility & contrast

On white

13.32

#1B296B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1B296B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B296B

13.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B296B	#FFFFFF	#000000	##FFFFFF
##1B296B	1.00	13.32	1.58	13.32
#FFFFFF	13.32	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00336D

Deuteranopia (green-blind)

#002C6A

Tritanopia (blue-blind)

#003945

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1b296b;
/* rgb */ color: rgb(27, 41, 107);
/* oklch */ color: oklch(31.4% 0.116 269.4);

Tailwind

colors: {
  custom: {
    50: '#646296',
    500: '#1b296b',
    950: '#000000',
  },
}

SCSS

$custom: #1b296b;
$custom-light: #646296;
$custom-dark: #000000;

JSON

{
  "hex": "#1b296b",
  "rgb": {
    "r": 27,
    "g": 41,
    "b": 107
  },
  "hsl": {
    "h": 229.5,
    "s": 59.701,
    "l": 26.275
  },
  "oklch": {
    "l": 0.31388,
    "c": 0.11609,
    "h": 269.4
  },
  "luminance": 0.0288
}

Semantic roles & 50–950 ramp

primary

#1B296B

secondary

#A09042

accent

#C745E3

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050D

muted

#7A797E

Preview Lab

Preview with #1B296B

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

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