#358DCB
Closest named color: Water Blue (#0E87CC). oklch(61.9% 0.125 243.4), rgb(53, 141, 203).
Aa
Black text reads best on this color (5.82:1).
About this color
#358DCB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.125 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.026 away. Black text reads best on it, at 5.82:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.82:1 |
| White text | 3.60:1 |
Values
| HEX | #358DCB |
| RGB | rgb(53, 141, 203) |
| HSL | hsl(205, 59%, 50%) |
| OKLCH | oklch(61.9% 0.125 243.4) |
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 #358DCB | 3.60:1 | AA large text | Lc -68.8 | Content text, not long reading |
| Black text on #358DCB | 5.82:1 | AA | Lc 40.8 | Non-text elements, placeholder text |
| #358DCB text on white | 3.60:1 | AA large text | Lc 63.3 | Content text, not long reading |
| #358DCB text on black | 5.82:1 | AA | Lc -38.4 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200
#C7DCEE
oklch(88.4% 0.034 244)
-
Step 300
300
#9FC6E6
oklch(80.9% 0.062 243.3)
-
Step 400
400
#68A8D9
oklch(70.8% 0.098 242.8)
-
Step 500
500 (this color)
#358DCB
oklch(61.9% 0.125 243.4)
-
Step 600
600
#007ABC
oklch(55.7% 0.136 243.3)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800
#005383
oklch(42.6% 0.105 243.8)
-
Step 900
900
#104569
oklch(37.6% 0.082 243.7)
-
Step 950
950
#0C293E
oklch(27.1% 0.052 243.5)
#358DCB 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) | #708FCE | 0.057 |
| Deuteranopia (no green cones) | #5C80CA | 0.045 |
| Tritanopia (no blue cones) | #009CA3 | 0.087 |
| Achromatopsia (no color) | #878787 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #358DCB
#358DCB
oklch(61.9% 0.125 243.4)
- #BA7326
#BA7326
oklch(61.9% 0.125 63.1)
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 #358DCB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.026
- Cool Blue #4984B8 ΔE 0.034
- Dark Sky Blue #448EE4 ΔE 0.041
- Steel Blue #4682B4 ΔE 0.041
- Blue NCS #118AB2 ΔE 0.044
- Faded Blue #658CBB ΔE 0.047
- Off Blue #5684AE ΔE 0.049
- Dusty Blue #5A86AD ΔE 0.051
Use #358DCB 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.