#2378A5#2378A5

#2378A5 is a mid, moderate cyan. Relative luminance 0.165; OKLCH L 54.4% C 0.105 H 237.0°. Best body text is #FFFFFF at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#2378A5
RGB	rgb(35, 120, 165)
HSL	hsl(201, 65%, 39%)
HSV	hsv(201, 79%, 65%)
CMYK	cmyk(78.8%, 27.3%, 0%, 35.3%)
CIE-LAB	lab(47.63, -8.97, -31.14)
CIE-LCH	lch(47.63, 32.40, 253.93°)
OKLab	oklab(54.43% -0.0571 -0.088)
OKLCH	oklch(54.43% 0.105 237)
XYZ	xyz(14.1984, 16.5052, 38.0275)
Luminance	0.1651 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2378A5 #A55023

analogous

#23A591 #2378A5 #2337A5

triadic

#2378A5 #A52378 #78A523

tetradic

#2378A5 #9123A5 #A55023 #37A523

square

#2378A5 #9123A5 #A55023 #37A523

split-complementary

#2378A5 #A52337 #A59123

monochromatic

#0E2F40 #185373 #2378A5 #329BD3 #64B4DE

Accessibility & contrast

On white

4.88

#2378A5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#2378A5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2378A5

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2378A5	#FFFFFF	#000000	##FFFFFF
##2378A5	1.00	4.88	4.30	4.88
#FFFFFF	4.88	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6278A7

Deuteranopia (green-blind)

#516CA4

Tritanopia (blue-blind)

#008488

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #2378a5;
/* rgb */ color: rgb(35, 120, 165);
/* oklch */ color: oklch(54.4% 0.105 237.0);

Tailwind

colors: {
  custom: {
    50: '#729ec0',
    500: '#2378a5',
    950: '#000000',
  },
}

SCSS

$custom: #2378a5;
$custom-light: #729ec0;
$custom-dark: #000000;

JSON

{
  "hex": "#2378a5",
  "rgb": {
    "r": 35,
    "g": 120,
    "b": 165
  },
  "hsl": {
    "h": 200.769,
    "s": 65,
    "l": 39.216
  },
  "oklch": {
    "l": 0.54429,
    "c": 0.10487,
    "h": 237
  },
  "luminance": 0.16507
}

Semantic roles & 50–950 ramp

primary

#2378A5

secondary

#C48360

accent

#7A40E8

background

#F7F9FB

surface

#EDF2F7

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #2378A5

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

Preview Lab → · Contrast checker → · Palette generator →