#408C9F
Closest named color: Teal Blue (#01889F). oklch(60% 0.08 216.6), rgb(64, 140, 159).
Aa
Black text reads best on this color (5.46:1).
About this color
#408C9F is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 60%, its chroma 0.080 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.032 away. Black text reads best on it, at 5.46:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 5.46:1 |
| White text | 3.83:1 |
Values
| HEX | #408C9F |
| RGB | rgb(64, 140, 159) |
| HSL | hsl(192, 43%, 44%) |
| OKLCH | oklch(60% 0.08 216.6) |
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 #408C9F | 3.83:1 | AA large text | Lc -71.2 | Content text, not long reading |
| Black text on #408C9F | 5.46:1 | AA | Lc 38.4 | Non-text elements, placeholder text |
| #408C9F text on white | 3.83:1 | AA large text | Lc 65.7 | Content text, not long reading |
| #408C9F text on black | 5.46:1 | AA | Lc -36.0 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CADDE2
oklch(88.5% 0.022 215.3)
-
Step 300
300
#A5C7D1
oklch(80.8% 0.039 217.5)
-
Step 400
400
#73ABBA
oklch(70.8% 0.062 216.4)
-
Step 500
500 (this color)
#408C9F
oklch(60% 0.08 216.6)
-
Step 600
600
#278094
oklch(55.7% 0.086 216.1)
-
Step 700
700
#176C7E
oklch(49.2% 0.081 216)
-
Step 800
800
#175867
oklch(42.8% 0.067 216.8)
-
Step 900
900
#1C4853
oklch(37.6% 0.051 216.8)
-
Step 950
950
#122A31
oklch(26.9% 0.033 219.1)
#408C9F 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) | #7F88A0 | 0.070 |
| Deuteranopia (no green cones) | #717E9F | 0.063 |
| Tritanopia (no blue cones) | #009392 | 0.042 |
| Achromatopsia (no color) | #828282 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #408C9F
#408C9F
oklch(60% 0.08 216.6)
- #AA6F5E
#AA6F5E
oklch(60% 0.08 36.8)
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 #408C9F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.032
- Teal Green #0A9396 ΔE 0.037
- Blue NCS #118AB2 ΔE 0.038
- Dusty Blue #5A86AD ΔE 0.040
- Off Blue #5684AE ΔE 0.043
- Dark Cyan #008B8B ΔE 0.045
- Dusty Teal #4C9085 ΔE 0.046
- Sea #3C9992 ΔE 0.049
Use #408C9F 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.