#3E9EA4
Closest named color: Cadet Blue (#5F9EA0). oklch(64.6% 0.089 201), rgb(62, 158, 164).
Aa
Black text reads best on this color (6.63:1).
About this color
#3E9EA4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.089 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.027 away. Black text reads best on it, at 6.63:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.63:1 |
| White text | 3.16:1 |
Values
| HEX | #3E9EA4 |
| RGB | rgb(62, 158, 164) |
| HSL | hsl(184, 45%, 44%) |
| OKLCH | oklch(64.6% 0.089 201) |
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 #3E9EA4 | 3.16:1 | AA large text | Lc -63.9 | Content text, not long reading |
| Black text on #3E9EA4 | 6.63:1 | AA | Lc 45.5 | Large or bold text, headings |
| #3E9EA4 text on white | 3.16:1 | AA large text | Lc 58.5 | Large or bold text, headings |
| #3E9EA4 text on black | 6.63:1 | AA | Lc -43.2 | 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
#E1EDED
oklch(93.7% 0.013 196.9)
-
Step 200
200
#C8DEE0
oklch(88.5% 0.024 203.4)
-
Step 300
300
#A0CACC
oklch(81% 0.044 199.9)
-
Step 400
400
#6AAEB2
oklch(70.7% 0.069 200.5)
-
Step 500
500 (this color)
#3E9EA4
oklch(64.6% 0.089 201)
-
Step 600
600
#00838A
oklch(55.5% 0.094 201.4)
-
Step 700
700
#006E74
oklch(49% 0.083 201.4)
-
Step 800
800
#005B5F
oklch(42.8% 0.073 200)
-
Step 900
900
#0F4B4E
oklch(37.8% 0.058 200)
-
Step 950
950
#0C2C2E
oklch(27.1% 0.037 201)
#3E9EA4 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) | #9397A5 | 0.091 |
| Deuteranopia (no green cones) | #838CA5 | 0.083 |
| Tritanopia (no blue cones) | #00A4A0 | 0.028 |
| Achromatopsia (no color) | #919191 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E9EA4
#3E9EA4
oklch(64.6% 0.089 201)
- #BE7876
#BE7876
oklch(64.6% 0.088 21.6)
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 #3E9EA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.027
- Sea #3C9992 ΔE 0.028
- Persian Green #2A9D8F ΔE 0.035
- Dull Teal #5F9E8F ΔE 0.039
- Grey Teal #5E9B8A ΔE 0.041
- Blue Green #0F9B8E ΔE 0.042
- Teal Green #0A9396 ΔE 0.045
- Dusty Teal #4C9085 ΔE 0.051
Use #3E9EA4 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.