#1B4F89#1B4F89

#1B4F89 is a dark, moderate cyan. Relative luminance 0.076; OKLCH L 42.5% C 0.111 H 253.9°. Best body text is #FFFFFF at 8.31:1 contrast (WCAG AA passes).

Color values

HEX	#1B4F89
RGB	rgb(27, 79, 137)
HSL	hsl(212, 67%, 32%)
HSV	hsv(212, 80%, 54%)
CMYK	cmyk(80.3%, 42.3%, 0%, 46.3%)
CIE-LAB	lab(33.20, 4.85, -37.19)
CIE-LCH	lch(33.20, 37.51, 277.43°)
OKLab	oklab(42.51% -0.0307 -0.1063)
OKLCH	oklch(42.51% 0.111 253.9)
XYZ	xyz(7.7616, 7.6302, 24.7258)
Luminance	0.0763 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4F89 #89551B

analogous

#1B8689 #1B4F89 #1E1B89

triadic

#1B4F89 #891B4F #4F891B

tetradic

#1B4F89 #891B86 #89551B #1B891E

square

#1B4F89 #891B86 #89551B #1B891E

split-complementary

#1B4F89 #891E1B #86891B

monochromatic

#071423 #113256 #1B4F89 #256CBC #448BDA

Accessibility & contrast

On white

8.31

#1B4F89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#1B4F89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4F89

8.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4F89	#FFFFFF	#000000	##FFFFFF
##1B4F89	1.00	8.31	2.53	8.31
#FFFFFF	8.31	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#33538B

Deuteranopia (green-blind)

#204988

Tritanopia (blue-blind)

#005D65

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1b4f89;
/* rgb */ color: rgb(27, 79, 137);
/* oklch */ color: oklch(42.5% 0.111 253.9);

Tailwind

colors: {
  custom: {
    50: '#697fac',
    500: '#1b4f89',
    950: '#000000',
  },
}

SCSS

$custom: #1b4f89;
$custom-light: #697fac;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4f89",
  "rgb": {
    "r": 27,
    "g": 79,
    "b": 137
  },
  "hsl": {
    "h": 211.636,
    "s": 67.073,
    "l": 32.157
  },
  "oklch": {
    "l": 0.42514,
    "c": 0.1107,
    "h": 253.9
  },
  "luminance": 0.07631
}

Semantic roles & 50–950 ramp

primary

#1B4F89

secondary

#BC8344

accent

#993EEA

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1B4F89

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

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