#1B296E#1B296E

#1B296E is a dark, vivid blue. Relative luminance 0.029; OKLCH L 31.7% C 0.121 H 269.4°. Best body text is #FFFFFF at 13.22:1 contrast (WCAG AA passes).

Color values

HEX	#1B296E
RGB	rgb(27, 41, 110)
HSL	hsl(230, 61%, 27%)
HSV	hsv(230, 75%, 43%)
CMYK	cmyk(75.5%, 62.7%, 0%, 56.9%)
CIE-LAB	lab(19.82, 20.37, -41.77)
CIE-LCH	lch(19.82, 46.47, 295.99°)
OKLab	oklab(31.67% -0.0012 -0.1205)
OKLCH	oklch(31.67% 0.121 269.4)
XYZ	xyz(4.0584, 2.9443, 15.1032)
Luminance	0.0295 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B296E #6E601B

analogous

#1B536E #1B296E #371B6E

triadic

#1B296E #6E1B29 #296E1B

tetradic

#1B296E #6E1B53 #6E601B #1B6E37

square

#1B296E #6E1B53 #6E601B #1B6E37

split-complementary

#1B296E #6E371B #536E1B

monochromatic

#060919 #0F173D #1B296E #273B9F #364FCE

Accessibility & contrast

On white

13.22

#1B296E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1B296E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B296E

13.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B296E	#FFFFFF	#000000	##FFFFFF
##1B296E	1.00	13.22	1.59	13.22
#FFFFFF	13.22	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003470

Deuteranopia (green-blind)

#002C6D

Tritanopia (blue-blind)

#003A47

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1b296e;
/* rgb */ color: rgb(27, 41, 110);
/* oklch */ color: oklch(31.7% 0.121 269.4);

Tailwind

colors: {
  custom: {
    50: '#646298',
    500: '#1b296e',
    950: '#000000',
  },
}

SCSS

$custom: #1b296e;
$custom-light: #646298;
$custom-dark: #000000;

JSON

{
  "hex": "#1b296e",
  "rgb": {
    "r": 27,
    "g": 41,
    "b": 110
  },
  "hsl": {
    "h": 229.88,
    "s": 60.584,
    "l": 26.863
  },
  "oklch": {
    "l": 0.31665,
    "c": 0.12055,
    "h": 269.4
  },
  "luminance": 0.02945
}

Semantic roles & 50–950 ramp

primary

#1B296E

secondary

#A39342

accent

#C944E4

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #1B296E

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

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