#437D80
Closest named color: Teal (#008080). oklch(55.2% 0.061 199.9), rgb(67, 125, 128).
Aa
White text reads best on this color (4.68:1).
About this color
#437D80 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 55%, its chroma 0.061 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.034 away. White text reads best on it, at 4.68:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.48:1 |
| White text | 4.68:1 |
Values
| HEX | #437D80 |
| RGB | rgb(67, 125, 128) |
| HSL | hsl(183, 31%, 38%) |
| OKLCH | oklch(55.2% 0.061 199.9) |
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 #437D80 | 4.68:1 | AA | Lc -77.9 | Fine for body text |
| Black text on #437D80 | 4.48:1 | AA large text | Lc 31.7 | Non-text elements, placeholder text |
| #437D80 text on white | 4.68:1 | AA | Lc 72.4 | Content text, not long reading |
| #437D80 text on black | 4.48:1 | AA large text | Lc -29.3 | 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 600.
-
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
#ADC6C7
oklch(80.8% 0.027 199.6)
-
Step 400
400
#81A9AB
oklch(70.6% 0.043 200)
-
Step 500
500
#5F9497
oklch(63.1% 0.056 200.4)
-
Step 600
600 (this color)
#437D80
oklch(55.2% 0.061 199.9)
-
Step 700
700
#356B6D
oklch(49.2% 0.057 198.6)
-
Step 800
800
#2D5759
oklch(42.7% 0.047 199.6)
-
Step 900
900
#294849
oklch(37.8% 0.037 198.4)
-
Step 950
950
#182A2B
oklch(27% 0.024 200.3)
#437D80 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) | #767880 | 0.063 |
| Deuteranopia (no green cones) | #6B7180 | 0.057 |
| Tritanopia (no blue cones) | #22817E | 0.026 |
| Achromatopsia (no color) | #747474 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #437D80
#437D80
oklch(55.2% 0.061 199.9)
- #936463
#936463
oklch(55.3% 0.061 20.6)
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 #437D80, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.034
- Deep Aqua #08787F ΔE 0.040
- Bluegreen #017A79 ΔE 0.040
- Ocean #017B92 ΔE 0.044
- Metallic Blue #4F738E ΔE 0.044
- Dark Cyan #008B8B ΔE 0.046
- Grey Blue #647D8E ΔE 0.046
- Battleship Grey #6B7C85 ΔE 0.048
Use #437D80 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.