#3D9FC0
Closest named color: Turquoise Blue (#06B1C4). oklch(65.9% 0.102 224), rgb(61, 159, 192).
Aa
Black text reads best on this color (6.91:1).
About this color
#3D9FC0 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.102 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.051 away. Black text reads best on it, at 6.91:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 6.91:1 |
| White text | 3.03:1 |
Values
| HEX | #3D9FC0 |
| RGB | rgb(61, 159, 192) |
| HSL | hsl(195, 52%, 50%) |
| OKLCH | oklch(65.9% 0.102 224) |
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 #3D9FC0 | 3.03:1 | AA large text | Lc -62.2 | Content text, not long reading |
| Black text on #3D9FC0 | 6.91:1 | AA | Lc 47.2 | Large or bold text, headings |
| #3D9FC0 text on white | 3.03:1 | AA large text | Lc 56.8 | Large or bold text, headings |
| #3D9FC0 text on black | 6.91:1 | AA | Lc -44.9 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF1
oklch(93.6% 0.015 224.5)
-
Step 200
200
#C7DEE7
oklch(88.6% 0.028 223.3)
-
Step 300
300
#9FC8D9
oklch(80.9% 0.05 225.1)
-
Step 400
400
#66ACC6
oklch(70.8% 0.08 224)
-
Step 500
500 (this color)
#3D9FC0
oklch(65.9% 0.102 224)
-
Step 600
600
#0080A0
oklch(55.7% 0.104 223.4)
-
Step 700
700
#006B87
oklch(49% 0.092 224)
-
Step 800
800
#00586F
oklch(42.7% 0.08 223.4)
-
Step 900
900
#0A495C
oklch(37.8% 0.067 224.1)
-
Step 950
950
#0A2B36
oklch(27.1% 0.042 224)
#3D9FC0 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) | #8C9CC2 | 0.079 |
| Deuteranopia (no green cones) | #7A8EC0 | 0.071 |
| Tritanopia (no blue cones) | #00A9AA | 0.055 |
| Achromatopsia (no color) | #949494 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D9FC0
#3D9FC0
oklch(65.9% 0.102 224)
- #C67D5D
#C67D5D
oklch(65.9% 0.102 44.2)
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 #3D9FC0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.051
- Cadet Blue #5F9EA0 ΔE 0.052
- Greyblue #77A1B5 ΔE 0.055
- Faded Blue #658CBB ΔE 0.058
- Blue NCS #118AB2 ΔE 0.068
- Sea #3C9992 ΔE 0.068
- Silver Lake Blue #778DA9 ΔE 0.068
- Blue Grey #758DA3 ΔE 0.069
Use #3D9FC0 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.