#1F528A#1F528A

#1F528A is a dark, moderate cyan. Relative luminance 0.082; OKLCH L 43.4% C 0.107 H 253.3°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#1F528A
RGB	rgb(31, 82, 138)
HSL	hsl(211, 63%, 33%)
HSV	hsv(211, 78%, 54%)
CMYK	cmyk(77.5%, 40.6%, 0%, 45.9%)
CIE-LAB	lab(34.31, 3.78, -36.02)
CIE-LCH	lch(34.31, 36.22, 275.99°)
OKLab	oklab(43.44% -0.0308 -0.1028)
OKLCH	oklch(43.44% 0.107 253.3)
XYZ	xyz(8.1681, 8.1599, 25.1844)
Luminance	0.0816 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F528A #8A571F

analogous

#1F878A #1F528A #211F8A

triadic

#1F528A #8A1F52 #528A1F

tetradic

#1F528A #8A1F87 #8A571F #1F8A21

square

#1F528A #8A1F87 #8A571F #1F8A21

split-complementary

#1F528A #8A211F #878A1F

monochromatic

#091726 #143458 #1F528A #2A70BC #4C8ED7

Accessibility & contrast

On white

7.98

#1F528A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#1F528A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F528A

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F528A	#FFFFFF	#000000	##FFFFFF
##1F528A	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#37568C

Deuteranopia (green-blind)

#264C89

Tritanopia (blue-blind)

#005F67

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1f528a;
/* rgb */ color: rgb(31, 82, 138);
/* oklch */ color: oklch(43.4% 0.107 253.3);

Tailwind

colors: {
  custom: {
    50: '#6b82ac',
    500: '#1f528a',
    950: '#000000',
  },
}

SCSS

$custom: #1f528a;
$custom-light: #6b82ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1f528a",
  "rgb": {
    "r": 31,
    "g": 82,
    "b": 138
  },
  "hsl": {
    "h": 211.402,
    "s": 63.314,
    "l": 33.137
  },
  "oklch": {
    "l": 0.43436,
    "c": 0.10733,
    "h": 253.3
  },
  "luminance": 0.08161
}

Semantic roles & 50–950 ramp

primary

#1F528A

secondary

#BA854B

accent

#9841E6

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1F528A

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

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