#1B4D91#1B4D91

#1B4D91 is a dark, vivid cyan. Relative luminance 0.076; OKLCH L 42.6% C 0.124 H 257.3°. Best body text is #FFFFFF at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#1B4D91
RGB	rgb(27, 77, 145)
HSL	hsl(215, 69%, 34%)
HSV	hsv(215, 81%, 57%)
CMYK	cmyk(81.4%, 46.9%, 0%, 43.1%)
CIE-LAB	lab(33.10, 9.42, -42.24)
CIE-LCH	lch(33.10, 43.28, 282.58°)
OKLab	oklab(42.6% -0.0273 -0.1212)
OKLCH	oklch(42.6% 0.124 257.3)
XYZ	xyz(8.2148, 7.5841, 27.8135)
Luminance	0.0759 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4D91 #915F1B

analogous

#1B8891 #1B4D91 #241B91

triadic

#1B4D91 #911B4D #4D911B

tetradic

#1B4D91 #911B88 #915F1B #1B9124

square

#1B4D91 #911B88 #915F1B #1B9124

split-complementary

#1B4D91 #91241B #88911B

monochromatic

#08162A #11325D #1B4D91 #2568C5 #4988DD

Accessibility & contrast

On white

8.34

#1B4D91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#1B4D91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4D91

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4D91	#FFFFFF	#000000	##FFFFFF
##1B4D91	1.00	8.34	2.52	8.34
#FFFFFF	8.34	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#295494

Deuteranopia (green-blind)

#0B4990

Tritanopia (blue-blind)

#005D68

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1b4d91;
/* rgb */ color: rgb(27, 77, 145);
/* oklch */ color: oklch(42.6% 0.124 257.3);

Tailwind

colors: {
  custom: {
    50: '#6b7eb2',
    500: '#1b4d91',
    950: '#000000',
  },
}

SCSS

$custom: #1b4d91;
$custom-light: #6b7eb2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4d91",
  "rgb": {
    "r": 27,
    "g": 77,
    "b": 145
  },
  "hsl": {
    "h": 214.576,
    "s": 68.605,
    "l": 33.725
  },
  "oklch": {
    "l": 0.42602,
    "c": 0.12428,
    "h": 257.3
  },
  "luminance": 0.07585
}

Semantic roles & 50–950 ramp

primary

#1B4D91

secondary

#BF8D49

accent

#A13CEB

background

#F6F7FB

surface

#ECEEF6

border

#C7C9D0

text

#080911

muted

#7A7B80

Preview Lab

Preview with #1B4D91

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

Preview Lab → · Contrast checker → · Palette generator →