#359EC5
Closest named color: Turquoise Blue (#06B1C4). oklch(65.7% 0.109 227.2), rgb(53, 158, 197).
Aa
Black text reads best on this color (6.84:1).
About this color
#359EC5 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.109 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.055 away. Black text reads best on it, at 6.84:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 6.84:1 |
| White text | 3.06:1 |
Values
| HEX | #359EC5 |
| RGB | rgb(53, 158, 197) |
| HSL | hsl(196, 58%, 49%) |
| OKLCH | oklch(65.7% 0.109 227.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #359EC5 | 3.06:1 | AA large text | Lc -62.6 | Content text, not long reading |
| Black text on #359EC5 | 6.84:1 | AA | Lc 46.9 | Large or bold text, headings |
| #359EC5 text on white | 3.06:1 | AA large text | Lc 57.2 | Large or bold text, headings |
| #359EC5 text on black | 6.84:1 | AA | Lc -44.6 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF2
oklch(93.6% 0.015 229)
-
Step 200
200
#C6DEE9
oklch(88.6% 0.03 227)
-
Step 300
300
#9DC8DC
oklch(80.9% 0.053 228)
-
Step 400
400
#62ACCA
oklch(70.8% 0.086 226.3)
-
Step 500
500 (this color)
#359EC5
oklch(65.7% 0.109 227.2)
-
Step 600
600
#007FA4
oklch(55.6% 0.108 227.1)
-
Step 700
700
#006B8A
oklch(49.2% 0.095 226.5)
-
Step 800
800
#005772
oklch(42.6% 0.083 227.6)
-
Step 900
900
#03495F
oklch(37.8% 0.071 226.7)
-
Step 950
950
#082B38
oklch(27.1% 0.045 227.2)
#359EC5 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #899BC7 | 0.080 |
| Deuteranopia (no green cones) | #768DC5 | 0.070 |
| Tritanopia (no blue cones) | #00A9AB | 0.060 |
| Achromatopsia (no color) | #939393 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #359EC5
#359EC5
oklch(65.7% 0.109 227.2)
- #C87B54
#C87B54
oklch(65.7% 0.11 47.1)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #359EC5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.055
- Faded Blue #658CBB ΔE 0.057
- Cadet Blue #5F9EA0 ΔE 0.061
- Greyblue #77A1B5 ΔE 0.062
- Blue NCS #118AB2 ΔE 0.064
- Dusty Blue #5A86AD ΔE 0.069
- Cool Blue #4984B8 ΔE 0.071
- Silver Lake Blue #778DA9 ΔE 0.072
Use #359EC5 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.