#3598CD
Closest named color: Faded Blue (#658CBB). oklch(64.6% 0.119 236.6), rgb(53, 152, 205).
Aa
Black text reads best on this color (6.52:1).
About this color
#3598CD is a medium-light, moderately saturated blue. In OKLCH its lightness is 65%, its chroma 0.119 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.049 away. Black text reads best on it, at 6.52:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.52:1 |
| White text | 3.21:1 |
Values
| HEX | #3598CD |
| RGB | rgb(53, 152, 205) |
| HSL | hsl(201, 60%, 51%) |
| OKLCH | oklch(64.6% 0.119 236.6) |
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 #3598CD | 3.21:1 | AA large text | Lc -64.5 | Content text, not long reading |
| Black text on #3598CD | 6.52:1 | AA | Lc 45.0 | Non-text elements, placeholder text |
| #3598CD text on white | 3.21:1 | AA large text | Lc 59.1 | Large or bold text, headings |
| #3598CD text on black | 6.52:1 | AA | Lc -42.7 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF4
oklch(93.6% 0.017 236.7)
-
Step 200
200
#C6DDEC
oklch(88.5% 0.032 236.4)
-
Step 300
300
#9DC7E2
oklch(80.9% 0.059 236.7)
-
Step 400
400
#64AAD3
oklch(70.8% 0.093 235.8)
-
Step 500
500 (this color)
#3598CD
oklch(64.6% 0.119 236.6)
-
Step 600
600
#007CB0
oklch(55.5% 0.121 236.7)
-
Step 700
700
#006895
oklch(49% 0.107 237)
-
Step 800
800
#00557B
oklch(42.6% 0.093 237.2)
-
Step 900
900
#074765
oklch(37.7% 0.078 236.2)
-
Step 950
950
#092A3B
oklch(27.1% 0.049 235.4)
#3598CD 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) | #7F97CF | 0.070 |
| Deuteranopia (no green cones) | #6A89CC | 0.057 |
| Tritanopia (no blue cones) | #00A6AA | 0.078 |
| Achromatopsia (no color) | #8F8F8F | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3598CD
#3598CD
oklch(64.6% 0.119 236.6)
- #C4793E
#C4793E
oklch(64.5% 0.12 56.6)
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 #3598CD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.049
- Dark Sky Blue #448EE4 ΔE 0.050
- Water Blue #0E87CC ΔE 0.054
- Chefchaouen Blue #4895EF ΔE 0.057
- Cool Blue #4984B8 ΔE 0.057
- Blue NCS #118AB2 ΔE 0.057
- Dusty Blue #5A86AD ΔE 0.062
- Steel Blue #4682B4 ΔE 0.064
Use #3598CD 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.