#40939D
Closest named color: Teal Green (#0A9396). oklch(61.6% 0.081 206), rgb(64, 147, 157).
Aa
Black text reads best on this color (5.87:1).
About this color
#40939D is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 62%, its chroma 0.081 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Green (#0A9396), ΔE 0.028 away. Black text reads best on it, at 5.87:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Teal Green (#0A9396) |
| Black text | 5.87:1 |
| White text | 3.57:1 |
Values
| HEX | #40939D |
| RGB | rgb(64, 147, 157) |
| HSL | hsl(186, 42%, 43%) |
| OKLCH | oklch(61.6% 0.081 206) |
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 #40939D | 3.57:1 | AA large text | Lc -68.6 | Content text, not long reading |
| Black text on #40939D | 5.87:1 | AA | Lc 41.0 | Non-text elements, placeholder text |
| #40939D text on white | 3.57:1 | AA large text | Lc 63.1 | Content text, not long reading |
| #40939D text on black | 5.87:1 | AA | Lc -38.6 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#C9DEE0
oklch(88.6% 0.023 203.7)
-
Step 300
300
#A4C8CD
oklch(80.8% 0.039 206.8)
-
Step 400
400
#70ACB4
oklch(70.6% 0.063 206.5)
-
Step 500
500 (this color)
#40939D
oklch(61.6% 0.081 206)
-
Step 600
600
#1D828D
oklch(55.7% 0.088 206.1)
-
Step 700
700
#096E77
oklch(49.2% 0.082 205)
-
Step 800
800
#105961
oklch(42.6% 0.068 206.3)
-
Step 900
900
#184A4F
oklch(37.8% 0.053 204.5)
-
Step 950
950
#102B2E
oklch(27% 0.033 205.1)
#40939D 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) | #888E9E | 0.079 |
| Deuteranopia (no green cones) | #7A839D | 0.073 |
| Tritanopia (no blue cones) | #009996 | 0.033 |
| Achromatopsia (no color) | #878787 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40939D
#40939D
oklch(61.6% 0.081 206)
- #B1726B
#B1726B
oklch(61.7% 0.081 26.6)
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 #40939D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Green #0A9396 ΔE 0.028
- Sea #3C9992 ΔE 0.029
- Dusty Teal #4C9085 ΔE 0.035
- Persian Green #2A9D8F ΔE 0.044
- Blue Green #0F9B8E ΔE 0.044
- Cadet Blue #5F9EA0 ΔE 0.045
- Teal Blue #01889F ΔE 0.047
- Dark Cyan #008B8B ΔE 0.047
Use #40939D 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.