#3591A1
Closest named color: Teal Green (#0A9396). oklch(60.9% 0.088 211.2), rgb(53, 145, 161).
Aa
Black text reads best on this color (5.71:1).
About this color
#3591A1 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 61%, its chroma 0.088 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Green (#0A9396), ΔE 0.027 away. Black text reads best on it, at 5.71:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Teal Green (#0A9396) |
| Black text | 5.71:1 |
| White text | 3.67:1 |
Values
| HEX | #3591A1 |
| RGB | rgb(53, 145, 161) |
| HSL | hsl(189, 50%, 42%) |
| OKLCH | oklch(60.9% 0.088 211.2) |
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 #3591A1 | 3.67:1 | AA large text | Lc -69.5 | Content text, not long reading |
| Black text on #3591A1 | 5.71:1 | AA | Lc 40.0 | Non-text elements, placeholder text |
| #3591A1 text on white | 3.67:1 | AA large text | Lc 64.0 | Content text, not long reading |
| #3591A1 text on black | 5.71:1 | AA | Lc -37.6 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C8DEE2
oklch(88.5% 0.024 209.8)
-
Step 300
300
#A1C9D0
oklch(80.9% 0.043 209.4)
-
Step 400
400
#6BADB9
oklch(70.8% 0.069 210.3)
-
Step 500
500 (this color)
#3591A1
oklch(60.9% 0.088 211.2)
-
Step 600
600
#058293
oklch(55.7% 0.096 210.9)
-
Step 700
700
#006D7C
oklch(49% 0.085 211.2)
-
Step 800
800
#025966
oklch(42.6% 0.074 211.9)
-
Step 900
900
#124A53
oklch(37.8% 0.058 210.5)
-
Step 950
950
#0D2B31
oklch(27% 0.037 212.9)
#3591A1 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) | #848CA2 | 0.082 |
| Deuteranopia (no green cones) | #7480A1 | 0.075 |
| Tritanopia (no blue cones) | #009896 | 0.035 |
| Achromatopsia (no color) | #858585 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3591A1
#3591A1
oklch(60.9% 0.088 211.2)
- #B26F62
#B26F62
oklch(61.1% 0.088 31.6)
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 #3591A1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Green #0A9396 ΔE 0.027
- Teal Blue #01889F ΔE 0.036
- Sea #3C9992 ΔE 0.039
- Blue NCS #118AB2 ΔE 0.041
- Dusty Teal #4C9085 ΔE 0.043
- Dark Cyan #008B8B ΔE 0.043
- Blue Green #0F9B8E ΔE 0.050
- Dusty Blue #5A86AD ΔE 0.051
Use #3591A1 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.