#1B296F#1B296F

#1B296F is a dark, vivid blue. Relative luminance 0.030; OKLCH L 31.8% C 0.122 H 269.4°. Best body text is #FFFFFF at 13.18:1 contrast (WCAG AA passes).

Color values

HEX	#1B296F
RGB	rgb(27, 41, 111)
HSL	hsl(230, 61%, 27%)
HSV	hsv(230, 76%, 44%)
CMYK	cmyk(75.7%, 63.1%, 0%, 56.5%)
CIE-LAB	lab(19.91, 20.77, -42.27)
CIE-LCH	lch(19.91, 47.10, 296.16°)
OKLab	oklab(31.76% -0.0012 -0.122)
OKLCH	oklch(31.76% 0.122 269.4)
XYZ	xyz(4.1132, 2.9662, 15.3916)
Luminance	0.0297 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B296F #6F611B

analogous

#1B536F #1B296F #371B6F

triadic

#1B296F #6F1B29 #296F1B

tetradic

#1B296F #6F1B53 #6F611B #1B6F37

square

#1B296F #6F1B53 #6F611B #1B6F37

split-complementary

#1B296F #6F371B #536F1B

monochromatic

#060919 #0F173E #1B296F #273BA0 #3650CE

Accessibility & contrast

On white

13.18

#1B296F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1B296F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B296F

13.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B296F	#FFFFFF	#000000	##FFFFFF
##1B296F	1.00	13.18	1.59	13.18
#FFFFFF	13.18	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003471

Deuteranopia (green-blind)

#002C6E

Tritanopia (blue-blind)

#003B47

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1b296f;
/* rgb */ color: rgb(27, 41, 111);
/* oklch */ color: oklch(31.8% 0.122 269.4);

Tailwind

colors: {
  custom: {
    50: '#656299',
    500: '#1b296f',
    950: '#000000',
  },
}

SCSS

$custom: #1b296f;
$custom-light: #656299;
$custom-dark: #000000;

JSON

{
  "hex": "#1b296f",
  "rgb": {
    "r": 27,
    "g": 41,
    "b": 111
  },
  "hsl": {
    "h": 230,
    "s": 60.87,
    "l": 27.059
  },
  "oklch": {
    "l": 0.31759,
    "c": 0.12202,
    "h": 269.4
  },
  "luminance": 0.02967
}

Semantic roles & 50–950 ramp

primary

#1B296F

secondary

#A49442

accent

#C944E4

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #1B296F

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

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