#375D8B#375D8B

#375D8B is a mid, moderate cyan. Relative luminance 0.105; OKLCH L 47.2% C 0.087 H 254.1°. Best body text is #FFFFFF at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#375D8B
RGB	rgb(55, 93, 139)
HSL	hsl(213, 43%, 38%)
HSV	hsv(213, 60%, 55%)
CMYK	cmyk(60.4%, 33.1%, 0%, 45.5%)
CIE-LAB	lab(38.73, 1.29, -29.58)
CIE-LCH	lch(38.73, 29.60, 272.50°)
OKLab	oklab(47.18% -0.0238 -0.0835)
OKLCH	oklch(47.18% 0.087 254.1)
XYZ	xyz(10.1484, 10.5041, 25.9138)
Luminance	0.1051 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375D8B #8B6537

analogous

#37878B #375D8B #3B378B

triadic

#375D8B #8B375D #5D8B37

tetradic

#375D8B #8B3787 #8B6537 #378B3B

square

#375D8B #8B3787 #8B6537 #378B3B

split-complementary

#375D8B #8B3B37 #878B37

monochromatic

#142233 #26405F #375D8B #487AB7 #749AC8

Accessibility & contrast

On white

6.77

#375D8B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#375D8B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375D8B

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375D8B	#FFFFFF	#000000	##FFFFFF
##375D8B	1.00	6.77	3.10	6.77
#FFFFFF	6.77	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A608D

Deuteranopia (green-blind)

#3F588A

Tritanopia (blue-blind)

#00676D

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #375d8b;
/* rgb */ color: rgb(55, 93, 139);
/* oklch */ color: oklch(47.2% 0.087 254.1);

Tailwind

colors: {
  custom: {
    50: '#758aad',
    500: '#375d8b',
    950: '#000000',
  },
}

SCSS

$custom: #375d8b;
$custom-light: #758aad;
$custom-dark: #000000;

JSON

{
  "hex": "#375d8b",
  "rgb": {
    "r": 55,
    "g": 93,
    "b": 139
  },
  "hsl": {
    "h": 212.857,
    "s": 43.299,
    "l": 38.039
  },
  "oklch": {
    "l": 0.47179,
    "c": 0.0868,
    "h": 254.1
  },
  "luminance": 0.10505
}

Semantic roles & 50–950 ramp

primary

#375D8B

secondary

#B1926D

accent

#9A55D3

background

#F7F8FA

surface

#EDF0F4

border

#C8CBCE

text

#090B10

muted

#7B7C7F

Preview Lab

Preview with #375D8B

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

Preview Lab → · Contrast checker → · Palette generator →