#1B2A8E#1B2A8E

#1B2A8E is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.0% C 0.164 H 268.8°. Best body text is #FFFFFF at 11.88:1 contrast (WCAG AA passes).

Color values

HEX	#1B2A8E
RGB	rgb(27, 42, 142)
HSL	hsl(232, 68%, 33%)
HSV	hsv(232, 81%, 56%)
CMYK	cmyk(81%, 70.4%, 0%, 44.3%)
CIE-LAB	lab(23.14, 32.14, -56.60)
CIE-LCH	lch(23.14, 65.09, 299.59°)
OKLab	oklab(35.04% -0.0035 -0.1639)
OKLCH	oklch(35.04% 0.164 268.8)
XYZ	xyz(6.1608, 3.8412, 26.0027)
Luminance	0.0384 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2A8E #8E7F1B

analogous

#1B638E #1B2A8E #451B8E

triadic

#1B2A8E #8E1B2A #2A8E1B

tetradic

#1B2A8E #8E1B63 #8E7F1B #1B8E45

square

#1B2A8E #8E1B63 #8E7F1B #1B8E45

split-complementary

#1B2A8E #8E451B #638E1B

monochromatic

#070C27 #111B5B #1B2A8E #2539C1 #475BDC

Accessibility & contrast

On white

11.88

#1B2A8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#1B2A8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2A8E

11.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2A8E	#FFFFFF	#000000	##FFFFFF
##1B2A8E	1.00	11.88	1.77	11.88
#FFFFFF	11.88	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D91

Deuteranopia (green-blind)

#00328C

Tritanopia (blue-blind)

#004658

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1b2a8e;
/* rgb */ color: rgb(27, 42, 142);
/* oklch */ color: oklch(35.0% 0.164 268.8);

Tailwind

colors: {
  custom: {
    50: '#6d64b0',
    500: '#1b2a8e',
    950: '#000000',
  },
}

SCSS

$custom: #1b2a8e;
$custom-light: #6d64b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2a8e",
  "rgb": {
    "r": 27,
    "g": 42,
    "b": 142
  },
  "hsl": {
    "h": 232.174,
    "s": 68.047,
    "l": 33.137
  },
  "oklch": {
    "l": 0.35039,
    "c": 0.16397,
    "h": 268.8
  },
  "luminance": 0.03842
}

Semantic roles & 50–950 ramp

primary

#1B2A8E

secondary

#BEAE47

accent

#D43DEB

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#080511

muted

#7B7980

Preview Lab

Preview with #1B2A8E

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

Preview Lab → · Contrast checker → · Palette generator →