#3D91AC
Closest named color: Blue NCS (#118AB2). oklch(61.7% 0.09 222.4), rgb(61, 145, 172).
Aa
Black text reads best on this color (5.84:1).
About this color
#3D91AC is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 62%, its chroma 0.090 and its hue 222°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.034 away. Black text reads best on it, at 5.84:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.84:1 |
| White text | 3.59:1 |
Values
| HEX | #3D91AC |
| RGB | rgb(61, 145, 172) |
| HSL | hsl(195, 48%, 46%) |
| OKLCH | oklch(61.7% 0.09 222.4) |
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 #3D91AC | 3.59:1 | AA large text | Lc -68.8 | Content text, not long reading |
| Black text on #3D91AC | 5.84:1 | AA | Lc 40.8 | Non-text elements, placeholder text |
| #3D91AC text on white | 3.59:1 | AA large text | Lc 63.3 | Content text, not long reading |
| #3D91AC text on black | 5.84:1 | AA | Lc -38.4 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C9DDE5
oklch(88.5% 0.024 223.7)
-
Step 300
300
#A3C8D5
oklch(81% 0.043 221.2)
-
Step 400
400
#6EABC0
oklch(70.7% 0.07 221.8)
-
Step 500
500 (this color)
#3D91AC
oklch(61.7% 0.09 222.4)
-
Step 600
600
#177F9C
oklch(55.5% 0.097 222.5)
-
Step 700
700
#016B86
oklch(49% 0.091 223.2)
-
Step 800
800
#0C586C
oklch(42.8% 0.075 221.4)
-
Step 900
900
#164858
oklch(37.6% 0.059 223.1)
-
Step 950
950
#0F2A33
oklch(26.8% 0.037 222.6)
#3D91AC 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) | #818EAD | 0.072 |
| Deuteranopia (no green cones) | #7282AC | 0.065 |
| Tritanopia (no blue cones) | #00999A | 0.048 |
| Achromatopsia (no color) | #878787 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D91AC
#3D91AC
oklch(61.7% 0.09 222.4)
- #B37359
#B37359
oklch(61.7% 0.09 42.8)
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 #3D91AC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.034
- Dusty Blue #5A86AD ΔE 0.039
- Off Blue #5684AE ΔE 0.042
- Teal Blue #01889F ΔE 0.043
- Teal Green #0A9396 ΔE 0.045
- Cool Blue #4984B8 ΔE 0.047
- Steel Blue #4682B4 ΔE 0.049
- Faded Blue #658CBB ΔE 0.049
Use #3D91AC 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.