#3597A2
Closest named color: Sea (#3C9992). oklch(62.5% 0.09 205.7), rgb(53, 151, 162).
Aa
Black text reads best on this color (6.09:1).
About this color
#3597A2 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 62%, its chroma 0.090 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.027 away. Black text reads best on it, at 6.09:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 6.09:1 |
| White text | 3.44:1 |
Values
| HEX | #3597A2 |
| RGB | rgb(53, 151, 162) |
| HSL | hsl(186, 51%, 42%) |
| OKLCH | oklch(62.5% 0.09 205.7) |
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 #3597A2 | 3.44:1 | AA large text | Lc -67.1 | Content text, not long reading |
| Black text on #3597A2 | 6.09:1 | AA | Lc 42.4 | Non-text elements, placeholder text |
| #3597A2 text on white | 3.44:1 | AA large text | Lc 61.7 | Content text, not long reading |
| #3597A2 text on black | 6.09:1 | AA | Lc -40.0 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C7DEE1
oklch(88.4% 0.025 206.2)
-
Step 300
300
#A0C9CE
oklch(80.8% 0.044 205.5)
-
Step 400
400
#69AEB6
oklch(70.8% 0.071 205.2)
-
Step 500
500 (this color)
#3597A2
oklch(62.5% 0.09 205.7)
-
Step 600
600
#00838E
oklch(55.7% 0.095 205.2)
-
Step 700
700
#006E78
oklch(49.1% 0.084 205.8)
-
Step 800
800
#005A62
oklch(42.7% 0.073 205.3)
-
Step 900
900
#0E4A51
oklch(37.6% 0.059 206.8)
-
Step 950
950
#0C2C2F
oklch(27.1% 0.037 203.8)
#3597A2 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) | #8B91A3 | 0.089 |
| Deuteranopia (no green cones) | #7B85A2 | 0.082 |
| Tritanopia (no blue cones) | #009D9A | 0.029 |
| Achromatopsia (no color) | #8A8A8A | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3597A2
#3597A2
oklch(62.5% 0.09 205.7)
- #B8726B
#B8726B
oklch(62.5% 0.09 26.1)
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 #3597A2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.027
- Teal Green #0A9396 ΔE 0.028
- Persian Green #2A9D8F ΔE 0.040
- Blue Green #0F9B8E ΔE 0.041
- Dusty Teal #4C9085 ΔE 0.042
- Cadet Blue #5F9EA0 ΔE 0.043
- Grey Teal #5E9B8A ΔE 0.051
- Teal Blue #01889F ΔE 0.052
Use #3597A2 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.