#40808E
Closest named color: Cerulean (#457B9D). oklch(56.3% 0.069 213.8), rgb(64, 128, 142).
Aa
Black text reads best on this color (4.69:1).
About this color
#40808E is a medium-dark, muted teal or cyan. In OKLCH its lightness is 56%, its chroma 0.069 and its hue 214°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean (#457B9D), ΔE 0.032 away. Black text reads best on it, at 4.69:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Cerulean (#457B9D) |
| Black text | 4.69:1 |
| White text | 4.47:1 |
Values
| HEX | #40808E |
| RGB | rgb(64, 128, 142) |
| HSL | hsl(191, 38%, 40%) |
| OKLCH | oklch(56.3% 0.069 213.8) |
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 #40808E | 4.47:1 | AA large text | Lc -76.4 | Fine for body text |
| Black text on #40808E | 4.69:1 | AA | Lc 33.2 | Non-text elements, placeholder text |
| #40808E text on white | 4.47:1 | AA large text | Lc 70.9 | Content text, not long reading |
| #40808E text on black | 4.69:1 | AA | Lc -30.8 | 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 600.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3EBED
oklch(93.5% 0.009 214.3)
-
Step 200
200
#CDDCE0
oklch(88.4% 0.017 215.5)
-
Step 300
300
#ABC6CD
oklch(80.9% 0.031 215.1)
-
Step 400
400
#7DA9B3
oklch(70.7% 0.049 213.3)
-
Step 500
500
#5A94A1
oklch(63.2% 0.064 213.6)
-
Step 600
600 (this color)
#40808E
oklch(56.3% 0.069 213.8)
-
Step 700
700
#2F6A77
oklch(49.1% 0.064 214.3)
-
Step 800
800
#285761
oklch(42.8% 0.054 213.4)
-
Step 900
900
#26474F
oklch(37.6% 0.041 215.1)
-
Step 950
950
#172A2E
oklch(27.1% 0.026 212.5)
#40808E 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) | #767C8F | 0.064 |
| Deuteranopia (no green cones) | #6A738E | 0.058 |
| Tritanopia (no blue cones) | #008684 | 0.040 |
| Achromatopsia (no color) | #777777 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40808E
#40808E
oklch(56.3% 0.069 213.8)
- #99675B
#99675B
oklch(56.3% 0.068 34.1)
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 #40808E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean #457B9D ΔE 0.032
- Stormy Blue #507B9C ΔE 0.035
- Teal Blue #01889F ΔE 0.036
- Ocean #017B92 ΔE 0.037
- Grey Blue #647D8E ΔE 0.039
- Metallic Blue #4F738E ΔE 0.040
- Teal #008080 ΔE 0.041
- Dark Cyan #008B8B ΔE 0.042
Use #40808E 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.