#3DA9CB
Closest named color: Turquoise Blue (#06B1C4). oklch(68.8% 0.108 222.8), rgb(61, 169, 203).
Aa
Black text reads best on this color (7.73:1).
About this color
#3DA9CB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 69%, its chroma 0.108 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.032 away. Black text reads best on it, at 7.73:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.73:1 |
| White text | 2.71:1 |
Values
| HEX | #3DA9CB |
| RGB | rgb(61, 169, 203) |
| HSL | hsl(194, 58%, 52%) |
| OKLCH | oklch(68.8% 0.108 222.8) |
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 #3DA9CB | 2.71:1 | Fails | Lc -57.5 | Large or bold text, headings |
| Black text on #3DA9CB | 7.73:1 | AAA | Lc 51.7 | Large or bold text, headings |
| #3DA9CB text on white | 2.71:1 | Fails | Lc 52.3 | Large or bold text, headings |
| #3DA9CB text on black | 7.73:1 | AAA | Lc -49.6 | Large or bold text, headings |
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 400.
-
Step 50
50
#EFF7FA
oklch(97.1% 0.009 222.1)
-
Step 100
100
#DDEDF3
oklch(93.6% 0.019 222.2)
-
Step 200
200
#BFDFEB
oklch(88.4% 0.038 222.5)
-
Step 300
300
#90CBE0
oklch(80.9% 0.067 222.1)
-
Step 400
400 (this color)
#3DA9CB
oklch(68.8% 0.108 222.8)
-
Step 500
500
#0098BD
oklch(63.1% 0.118 223.1)
-
Step 600
600
#00809F
oklch(55.6% 0.103 222.6)
-
Step 700
700
#006B86
oklch(49% 0.091 223.1)
-
Step 800
800
#00586E
oklch(42.7% 0.079 222.3)
-
Step 900
900
#00495C
oklch(37.6% 0.07 222.6)
-
Step 950
950
#002B38
oklch(26.8% 0.05 223.6)
#3DA9CB 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) | #95A5CD | 0.086 |
| Deuteranopia (no green cones) | #8297CB | 0.076 |
| Tritanopia (no blue cones) | #00B4B4 | 0.057 |
| Achromatopsia (no color) | #9D9D9D | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3DA9CB
#3DA9CB
oklch(68.8% 0.108 222.8)
- #D38463
#D38463
oklch(68.9% 0.108 43.3)
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 #3DA9CB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.032
- Greyblue #77A1B5 ΔE 0.054
- Cadet Blue #5F9EA0 ΔE 0.063
- Light Sea Green #20B2AA ΔE 0.065
- Bluegrey #85A3B2 ΔE 0.069
- Bluey Grey #89A0B0 ΔE 0.075
- Topaz #13BBAF ΔE 0.078
- Faded Blue #658CBB ΔE 0.080
Use #3DA9CB 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.