#437D7B
Closest named color: Teal (#008080). oklch(55% 0.061 192.6), rgb(67, 125, 123).
Aa
White text reads best on this color (4.71:1).
About this color
#437D7B is a medium-dark, muted teal or cyan. In OKLCH its lightness is 55%, its chroma 0.061 and its hue 193°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.032 away. White text reads best on it, at 4.71:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.45:1 |
| White text | 4.71:1 |
Values
| HEX | #437D7B |
| RGB | rgb(67, 125, 123) |
| HSL | hsl(178, 30%, 38%) |
| OKLCH | oklch(55% 0.061 192.6) |
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 #437D7B | 4.71:1 | AA | Lc -78.0 | Fine for body text |
| Black text on #437D7B | 4.45:1 | AA large text | Lc 31.5 | Non-text elements, placeholder text |
| #437D7B text on white | 4.71:1 | AA | Lc 72.6 | Content text, not long reading |
| #437D7B text on black | 4.45:1 | AA large text | Lc -29.1 | 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
#E4ECEB
oklch(93.7% 0.009 188.1)
-
Step 200
200
#CEDCDC
oklch(88.4% 0.015 196.9)
-
Step 300
300
#ADC7C5
oklch(81% 0.028 190.9)
-
Step 400
400
#81AAA8
oklch(70.8% 0.044 192.5)
-
Step 500
500
#609592
oklch(63.2% 0.057 191.3)
-
Step 600
600 (this color)
#437D7B
oklch(55% 0.061 192.6)
-
Step 700
700
#366B69
oklch(49.1% 0.057 192.2)
-
Step 800
800
#2D5756
oklch(42.6% 0.047 193.5)
-
Step 900
900
#294847
oklch(37.7% 0.037 193.1)
-
Step 950
950
#192A29
oklch(27% 0.023 191.2)
#437D7B 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) | #77787B | 0.065 |
| Deuteranopia (no green cones) | #6D707C | 0.061 |
| Tritanopia (no blue cones) | #26807C | 0.022 |
| Achromatopsia (no color) | #737373 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #437D7B
#437D7B
oklch(55% 0.061 192.6)
- #926368
#926368
oklch(55.1% 0.061 12.3)
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 #437D7B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.032
- Bluegreen #017A79 ΔE 0.038
- Deep Aqua #08787F ΔE 0.040
- Dark Cyan #008B8B ΔE 0.046
- Ocean #017B92 ΔE 0.049
- Metallic Blue #4F738E ΔE 0.051
- Grey Blue #647D8E ΔE 0.051
- Battleship Grey #6B7C85 ΔE 0.051
Use #437D7B 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.