#407378
Closest named color: Deep Aqua (#08787F). oklch(52.2% 0.055 203.8), rgb(64, 115, 120).
Aa
White text reads best on this color (5.32:1).
About this color
#407378 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.055 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.032 away. White text reads best on it, at 5.32:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 3.94:1 |
| White text | 5.32:1 |
Values
| HEX | #407378 |
| RGB | rgb(64, 115, 120) |
| HSL | hsl(185, 30%, 36%) |
| OKLCH | oklch(52.2% 0.055 203.8) |
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 #407378 | 5.32:1 | AA | Lc -81.7 | Fine for body text |
| Black text on #407378 | 3.94:1 | AA large text | Lc 27.7 | Dividers and decoration only |
| #407378 text on white | 5.32:1 | AA | Lc 76.4 | Fine for body text |
| #407378 text on black | 3.94:1 | AA large text | Lc -25.3 | Dividers and decoration only |
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 700.
-
Step 50
50
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4EBEC
oklch(93.5% 0.008 207.1)
-
Step 200
200
#CEDCDD
oklch(88.4% 0.015 202)
-
Step 300
300
#AEC6C8
oklch(80.9% 0.026 202.8)
-
Step 400
400
#82A9AD
oklch(70.8% 0.043 204)
-
Step 500
500
#619499
oklch(63.2% 0.055 203.7)
-
Step 600
600
#467E83
oklch(55.7% 0.06 203)
-
Step 700
700 (this color)
#407378
oklch(52.2% 0.055 203.8)
-
Step 800
800
#2E565A
oklch(42.6% 0.046 203.9)
-
Step 900
900
#2A474A
oklch(37.6% 0.035 204.1)
-
Step 950
950
#192A2B
oklch(27.1% 0.023 200.6)
#407378 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) | #6C6F78 | 0.055 |
| Deuteranopia (no green cones) | #636878 | 0.052 |
| Tritanopia (no blue cones) | #247774 | 0.026 |
| Achromatopsia (no color) | #6B6B6B | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #407378
#407378
oklch(52.2% 0.055 203.8)
- #875D5A
#875D5A
oklch(52.2% 0.056 23.7)
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 #407378, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.032
- Bluegreen #017A79 ΔE 0.036
- Deep Turquoise #017374 ΔE 0.037
- Dark Aquamarine #017371 ΔE 0.039
- Metallic Blue #4F738E ΔE 0.041
- Slate #516572 ΔE 0.043
- Teal #008080 ΔE 0.044
- Ocean #017B92 ΔE 0.046
Use #407378 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.