#3D9DAD
Closest named color: Cadet Blue (#5F9EA0). oklch(64.6% 0.091 210.4), rgb(61, 157, 173).
Aa
Black text reads best on this color (6.62:1).
About this color
#3D9DAD is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.091 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.033 away. Black text reads best on it, at 6.62:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.62:1 |
| White text | 3.16:1 |
Values
| HEX | #3D9DAD |
| RGB | rgb(61, 157, 173) |
| HSL | hsl(189, 48%, 46%) |
| OKLCH | oklch(64.6% 0.091 210.4) |
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 #3D9DAD | 3.16:1 | AA large text | Lc -64.0 | Content text, not long reading |
| Black text on #3D9DAD | 6.62:1 | AA | Lc 45.5 | Large or bold text, headings |
| #3D9DAD text on white | 3.16:1 | AA large text | Lc 58.6 | Large or bold text, headings |
| #3D9DAD text on black | 6.62:1 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C7DEE2
oklch(88.5% 0.025 209.3)
-
Step 300
300
#A0C9D1
oklch(80.9% 0.045 210.8)
-
Step 400
400
#69ADB9
oklch(70.7% 0.071 210)
-
Step 500
500 (this color)
#3D9DAD
oklch(64.6% 0.091 210.4)
-
Step 600
600
#008293
oklch(55.6% 0.096 210.7)
-
Step 700
700
#006D7C
oklch(49% 0.085 211.2)
-
Step 800
800
#005A65
oklch(42.8% 0.074 209.1)
-
Step 900
900
#0E4A53
oklch(37.7% 0.059 210)
-
Step 950
950
#0C2B31
oklch(26.9% 0.038 212.5)
#3D9DAD 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) | #8F98AE | 0.085 |
| Deuteranopia (no green cones) | #7F8BAD | 0.079 |
| Tritanopia (no blue cones) | #00A4A2 | 0.036 |
| Achromatopsia (no color) | #919191 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D9DAD
#3D9DAD
oklch(64.6% 0.091 210.4)
- #BF796C
#BF796C
oklch(64.7% 0.091 31.1)
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 #3D9DAD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.033
- Sea #3C9992 ΔE 0.040
- Persian Green #2A9D8F ΔE 0.049
- Teal Green #0A9396 ΔE 0.050
- Dull Teal #5F9E8F ΔE 0.051
- Blue Green #0F9B8E ΔE 0.054
- Grey Teal #5E9B8A ΔE 0.054
- Turquoise Blue #06B1C4 ΔE 0.057
Use #3D9DAD 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.