#40939F
Closest named color: Teal Green (#0A9396). oklch(61.7% 0.082 208.1), rgb(64, 147, 159).
Aa
Black text reads best on this color (5.89:1).
About this color
#40939F is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 62%, its chroma 0.082 and its hue 208°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Green (#0A9396), ΔE 0.030 away. Black text reads best on it, at 5.89:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Teal Green (#0A9396) |
| Black text | 5.89:1 |
| White text | 3.56:1 |
Values
| HEX | #40939F |
| RGB | rgb(64, 147, 159) |
| HSL | hsl(188, 43%, 44%) |
| OKLCH | oklch(61.7% 0.082 208.1) |
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 #40939F | 3.56:1 | AA large text | Lc -68.5 | Content text, not long reading |
| Black text on #40939F | 5.89:1 | AA | Lc 41.1 | Non-text elements, placeholder text |
| #40939F text on white | 3.56:1 | AA large text | Lc 63.0 | Content text, not long reading |
| #40939F text on black | 5.89:1 | AA | Lc -38.7 | 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
#C9DEE1
oklch(88.6% 0.023 207.1)
-
Step 300
300
#A4C8CE
oklch(80.9% 0.039 208.8)
-
Step 400
400
#70ACB5
oklch(70.7% 0.063 207.8)
-
Step 500
500 (this color)
#40939F
oklch(61.7% 0.082 208.1)
-
Step 600
600
#1C818E
oklch(55.5% 0.088 208.2)
-
Step 700
700
#096D79
oklch(49% 0.082 208.4)
-
Step 800
800
#105963
oklch(42.7% 0.068 209)
-
Step 900
900
#184950
oklch(37.6% 0.053 208.3)
-
Step 950
950
#102B2F
oklch(27% 0.033 208.2)
#40939F 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) | #878EA0 | 0.078 |
| Deuteranopia (no green cones) | #79839F | 0.072 |
| Tritanopia (no blue cones) | #009997 | 0.034 |
| Achromatopsia (no color) | #888888 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40939F
#40939F
oklch(61.7% 0.082 208.1)
- #B1726A
#B1726A
oklch(61.7% 0.081 27.6)
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 #40939F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Green #0A9396 ΔE 0.030
- Sea #3C9992 ΔE 0.031
- Dusty Teal #4C9085 ΔE 0.038
- Cadet Blue #5F9EA0 ΔE 0.046
- Persian Green #2A9D8F ΔE 0.046
- Teal Blue #01889F ΔE 0.046
- Blue Green #0F9B8E ΔE 0.047
- Dark Cyan #008B8B ΔE 0.049
Use #40939F 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.