#258AA5#258AA5

#258AA5 is a mid, moderate cyan. Relative luminance 0.213; OKLCH L 58.9% C 0.097 H 220.3°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#258AA5
RGB	rgb(37, 138, 165)
HSL	hsl(193, 63%, 40%)
HSV	hsv(193, 78%, 65%)
CMYK	cmyk(77.6%, 16.4%, 0%, 35.3%)
CIE-LAB	lab(53.26, -18.82, -22.41)
CIE-LCH	lch(53.26, 29.26, 229.97°)
OKLab	oklab(58.94% -0.074 -0.0627)
OKLCH	oklch(58.94% 0.097 220.3)
XYZ	xyz(16.6401, 21.2849, 38.8214)
Luminance	0.2129 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258AA5 #A54025

analogous

#25A580 #258AA5 #254AA5

triadic

#258AA5 #A5258A #8AA525

tetradic

#258AA5 #8025A5 #A54025 #4AA525

square

#258AA5 #8025A5 #A54025 #4AA525

split-complementary

#258AA5 #A5254A #A58025

monochromatic

#0F3641 #1A6073 #258AA5 #35B1D2 #67C4DD

Accessibility & contrast

On white

3.99

#258AA5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.26

#258AA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258AA5

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258AA5	#FFFFFF	#000000	##000000
##258AA5	1.00	3.99	5.26	5.26
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.26	21.00	1.00	1.00
##000000	5.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A86A6

Deuteranopia (green-blind)

#687AA5

Tritanopia (blue-blind)

#009393

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #258aa5;
/* rgb */ color: rgb(37, 138, 165);
/* oklch */ color: oklch(58.9% 0.097 220.3);

Tailwind

colors: {
  custom: {
    50: '#74acbf',
    500: '#258aa5',
    950: '#000000',
  },
}

SCSS

$custom: #258aa5;
$custom-light: #74acbf;
$custom-dark: #000000;

JSON

{
  "hex": "#258aa5",
  "rgb": {
    "r": 37,
    "g": 138,
    "b": 165
  },
  "hsl": {
    "h": 192.656,
    "s": 63.366,
    "l": 39.608
  },
  "oklch": {
    "l": 0.58942,
    "c": 0.09695,
    "h": 220.3
  },
  "luminance": 0.21287
}

Semantic roles & 50–950 ramp

primary

#258AA5

secondary

#C37763

accent

#6441E6

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #258AA5

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

Preview Lab → · Contrast checker → · Palette generator →