#359FBB
Closest named color: Cadet Blue (#5F9EA0). oklch(65.5% 0.102 219.2), rgb(53, 159, 187).
Aa
Black text reads best on this color (6.82:1).
About this color
#359FBB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.102 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.048 away. Black text reads best on it, at 6.82:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.82:1 |
| White text | 3.07:1 |
Values
| HEX | #359FBB |
| RGB | rgb(53, 159, 187) |
| HSL | hsl(193, 56%, 47%) |
| OKLCH | oklch(65.5% 0.102 219.2) |
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 #359FBB | 3.07:1 | AA large text | Lc -62.7 | Content text, not long reading |
| Black text on #359FBB | 6.82:1 | AA | Lc 46.7 | Large or bold text, headings |
| #359FBB text on white | 3.07:1 | AA large text | Lc 57.3 | Large or bold text, headings |
| #359FBB text on black | 6.82:1 | AA | Lc -44.4 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E0ECF0
oklch(93.5% 0.014 219.6)
-
Step 200
200
#C6DEE6
oklch(88.5% 0.028 219.8)
-
Step 300
300
#9DC9D7
oklch(80.9% 0.05 219.3)
-
Step 400
400
#63ADC3
oklch(70.8% 0.08 219.2)
-
Step 500
500 (this color)
#359FBB
oklch(65.5% 0.102 219.2)
-
Step 600
600
#00819B
oklch(55.7% 0.1 218.5)
-
Step 700
700
#006C83
oklch(49.1% 0.089 219.3)
-
Step 800
800
#00586C
oklch(42.6% 0.078 220.2)
-
Step 900
900
#044A5A
oklch(37.9% 0.067 219.1)
-
Step 950
950
#082B34
oklch(26.9% 0.042 218.6)
#359FBB 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) | #8E9BBD | 0.087 |
| Deuteranopia (no green cones) | #7B8DBB | 0.077 |
| Tritanopia (no blue cones) | #00A8A8 | 0.047 |
| Achromatopsia (no color) | #939393 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #359FBB
#359FBB
oklch(65.5% 0.102 219.2)
- #C67A61
#C67A61
oklch(65.5% 0.102 39)
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 #359FBB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.048
- Turquoise Blue #06B1C4 ΔE 0.049
- Greyblue #77A1B5 ΔE 0.059
- Sea #3C9992 ΔE 0.060
- Faded Blue #658CBB ΔE 0.063
- Teal Green #0A9396 ΔE 0.065
- Blue NCS #118AB2 ΔE 0.065
- Persian Green #2A9D8F ΔE 0.068
Use #359FBB 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.