#3589A3
Closest named color: Teal Blue (#01889F). oklch(59% 0.089 221.9), rgb(53, 137, 163).
Aa
Black text reads best on this color (5.25:1).
About this color
#3589A3 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.089 and its hue 222°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.022 away. Black text reads best on it, at 5.25:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 5.25:1 |
| White text | 3.99:1 |
Values
| HEX | #3589A3 |
| RGB | rgb(53, 137, 163) |
| HSL | hsl(194, 51%, 42%) |
| OKLCH | oklch(59% 0.089 221.9) |
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 #3589A3 | 3.99:1 | AA large text | Lc -72.5 | Content text, not long reading |
| Black text on #3589A3 | 5.25:1 | AA | Lc 37.1 | Non-text elements, placeholder text |
| #3589A3 text on white | 3.99:1 | AA large text | Lc 67.0 | Content text, not long reading |
| #3589A3 text on black | 5.25:1 | AA | Lc -34.7 | 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 600.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CADDE4
oklch(88.5% 0.023 221.8)
-
Step 300
300
#A5C7D3
oklch(80.9% 0.04 221.2)
-
Step 400
400
#73AABD
oklch(70.7% 0.064 221.6)
-
Step 500
500
#4B95AD
oklch(63.2% 0.082 221.7)
-
Step 600
600 (this color)
#3589A3
oklch(59% 0.089 221.9)
-
Step 700
700
#196B82
oklch(49.1% 0.082 221.6)
-
Step 800
800
#19576A
oklch(42.7% 0.068 222.6)
-
Step 900
900
#1C4856
oklch(37.7% 0.053 221.9)
-
Step 950
950
#122A32
oklch(26.9% 0.033 222)
#3589A3 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) | #7A86A4 | 0.072 |
| Deuteranopia (no green cones) | #6A7AA3 | 0.064 |
| Tritanopia (no blue cones) | #009191 | 0.047 |
| Achromatopsia (no color) | #7F7F7F | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3589A3
#3589A3
oklch(59% 0.089 221.9)
- #AA6B53
#AA6B53
oklch(59% 0.089 41.6)
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 #3589A3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.022
- Blue NCS #118AB2 ΔE 0.026
- Off Blue #5684AE ΔE 0.038
- Dusty Blue #5A86AD ΔE 0.039
- Cerulean #457B9D ΔE 0.040
- Steel Blue #4682B4 ΔE 0.040
- Stormy Blue #507B9C ΔE 0.042
- Cool Blue #4984B8 ΔE 0.043
Use #3589A3 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.