#3D9BBF
Closest named color: Faded Blue (#658CBB). oklch(64.9% 0.102 227.1), rgb(61, 155, 191).
Aa
Black text reads best on this color (6.63:1).
About this color
#3D9BBF is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.102 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.050 away. Black text reads best on it, at 6.63:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.63:1 |
| White text | 3.16:1 |
Values
| HEX | #3D9BBF |
| RGB | rgb(61, 155, 191) |
| HSL | hsl(197, 52%, 49%) |
| OKLCH | oklch(64.9% 0.102 227.1) |
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 #3D9BBF | 3.16:1 | AA large text | Lc -63.9 | Content text, not long reading |
| Black text on #3D9BBF | 6.63:1 | AA | Lc 45.6 | Large or bold text, headings |
| #3D9BBF text on white | 3.16:1 | AA large text | Lc 58.5 | Large or bold text, headings |
| #3D9BBF text on black | 6.63:1 | AA | Lc -43.3 | 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
#C7DDE8
oklch(88.5% 0.028 229.2)
-
Step 300
300
#9FC8DA
oklch(80.9% 0.05 226.5)
-
Step 400
400
#68ABC7
oklch(70.7% 0.079 226.7)
-
Step 500
500 (this color)
#3D9BBF
oklch(64.9% 0.102 227.1)
-
Step 600
600
#007FA4
oklch(55.6% 0.108 227.1)
-
Step 700
700
#006B8A
oklch(49.2% 0.095 226.5)
-
Step 800
800
#005772
oklch(42.6% 0.083 227.6)
-
Step 900
900
#0D485D
oklch(37.6% 0.067 227.5)
-
Step 950
950
#0B2A36
oklch(26.8% 0.042 227.3)
#3D9BBF 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) | #8898C1 | 0.076 |
| Deuteranopia (no green cones) | #768BBF | 0.066 |
| Tritanopia (no blue cones) | #00A5A7 | 0.058 |
| Achromatopsia (no color) | #919191 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D9BBF
#3D9BBF
oklch(64.9% 0.102 227.1)
- #C27B57
#C27B57
oklch(65% 0.102 47.3)
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 #3D9BBF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.050
- Cadet Blue #5F9EA0 ΔE 0.055
- Blue NCS #118AB2 ΔE 0.058
- Dusty Blue #5A86AD ΔE 0.059
- Greyblue #77A1B5 ΔE 0.060
- Turquoise Blue #06B1C4 ΔE 0.061
- Cool Blue #4984B8 ΔE 0.064
- Off Blue #5684AE ΔE 0.064
Use #3D9BBF 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.