#1F528F#1F528F

#1F528F is a dark, moderate cyan. Relative luminance 0.083; OKLCH L 43.8% C 0.114 H 255.0°. Best body text is #FFFFFF at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#1F528F
RGB	rgb(31, 82, 143)
HSL	hsl(213, 64%, 34%)
HSV	hsv(213, 78%, 56%)
CMYK	cmyk(78.3%, 42.7%, 0%, 43.9%)
CIE-LAB	lab(34.62, 5.76, -38.59)
CIE-LCH	lch(34.62, 39.02, 278.49°)
OKLab	oklab(43.77% -0.0296 -0.1103)
OKLCH	oklch(43.77% 0.114 255)
XYZ	xyz(8.5385, 8.3081, 27.1349)
Luminance	0.0831 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F528F #8F5C1F

analogous

#1F8A8F #1F528F #241F8F

triadic

#1F528F #8F1F52 #528F1F

tetradic

#1F528F #8F1F8A #8F5C1F #1F8F24

square

#1F528F #8F1F8A #8F5C1F #1F8F24

split-complementary

#1F528F #8F241F #8A8F1F

monochromatic

#09182A #14355D #1F528F #2A6FC1 #4F8ED9

Accessibility & contrast

On white

7.89

#1F528F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#1F528F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F528F

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F528F	#FFFFFF	#000000	##FFFFFF
##1F528F	1.00	7.89	2.66	7.89
#FFFFFF	7.89	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#345791

Deuteranopia (green-blind)

#214D8E

Tritanopia (blue-blind)

#006069

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1f528f;
/* rgb */ color: rgb(31, 82, 143);
/* oklch */ color: oklch(43.8% 0.114 255.0);

Tailwind

colors: {
  custom: {
    50: '#6c82b0',
    500: '#1f528f',
    950: '#000000',
  },
}

SCSS

$custom: #1f528f;
$custom-light: #6c82b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f528f",
  "rgb": {
    "r": 31,
    "g": 82,
    "b": 143
  },
  "hsl": {
    "h": 212.679,
    "s": 64.368,
    "l": 34.118
  },
  "oklch": {
    "l": 0.4377,
    "c": 0.11426,
    "h": 255
  },
  "luminance": 0.08309
}

Semantic roles & 50–950 ramp

primary

#1F528F

secondary

#BC8A4E

accent

#9B40E7

background

#F7F7FA

surface

#EDEEF5

border

#C8C9CF

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #1F528F

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

Preview Lab → · Contrast checker → · Palette generator →