#1F548C#1F548C

#1F548C is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 44.1% C 0.108 H 252.6°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#1F548C
RGB	rgb(31, 84, 140)
HSL	hsl(211, 64%, 34%)
HSV	hsv(211, 78%, 55%)
CMYK	cmyk(77.9%, 40%, 0%, 45.1%)
CIE-LAB	lab(35.05, 3.26, -36.07)
CIE-LCH	lch(35.05, 36.21, 275.16°)
OKLab	oklab(44.05% -0.0322 -0.1029)
OKLCH	oklch(44.05% 0.108 252.6)
XYZ	xyz(8.4672, 8.5244, 26.0050)
Luminance	0.0853 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F548C #8C571F

analogous

#1F8A8C #1F548C #201F8C

triadic

#1F548C #8C1F54 #548C1F

tetradic

#1F548C #8C1F8A #8C571F #1F8C20

square

#1F548C #8C1F8A #8C571F #1F8C20

split-complementary

#1F548C #8C201F #8A8C1F

monochromatic

#091828 #14365A #1F548C #2A72BE #4E91D8

Accessibility & contrast

On white

7.76

#1F548C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#1F548C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F548C

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F548C	#FFFFFF	#000000	##FFFFFF
##1F548C	1.00	7.76	2.71	7.76
#FFFFFF	7.76	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A588E

Deuteranopia (green-blind)

#284E8B

Tritanopia (blue-blind)

#006169

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1f548c;
/* rgb */ color: rgb(31, 84, 140);
/* oklch */ color: oklch(44.1% 0.108 252.6);

Tailwind

colors: {
  custom: {
    50: '#6b83ae',
    500: '#1f548c',
    950: '#000000',
  },
}

SCSS

$custom: #1f548c;
$custom-light: #6b83ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1f548c",
  "rgb": {
    "r": 31,
    "g": 84,
    "b": 140
  },
  "hsl": {
    "h": 210.826,
    "s": 63.743,
    "l": 33.529
  },
  "oklch": {
    "l": 0.44051,
    "c": 0.10784,
    "h": 252.6
  },
  "luminance": 0.08525
}

Semantic roles & 50–950 ramp

primary

#1F548C

secondary

#BB854C

accent

#9641E7

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #1F548C

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

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