#437571
Closest named color: Bluegreen (#017A79). oklch(52.6% 0.055 189.1), rgb(67, 117, 113).
Aa
White text reads best on this color (5.22:1).
About this color
#437571 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 53%, its chroma 0.055 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.035 away. White text reads best on it, at 5.22:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.02:1 |
| White text | 5.22:1 |
Values
| HEX | #437571 |
| RGB | rgb(67, 117, 113) |
| HSL | hsl(175, 27%, 36%) |
| OKLCH | oklch(52.6% 0.055 189.1) |
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 #437571 | 5.22:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #437571 | 4.02:1 | AA large text | Lc 28.3 | Dividers and decoration only |
| #437571 text on white | 5.22:1 | AA | Lc 75.8 | Fine for body text |
| #437571 text on black | 4.02:1 | AA large text | Lc -25.9 | 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
#E5EBEB
oklch(93.6% 0.006 197)
-
Step 200
200
#D0DCDB
oklch(88.5% 0.013 190.9)
-
Step 300
300
#B0C6C4
oklch(80.9% 0.024 190)
-
Step 400
400
#85A9A5
oklch(70.7% 0.04 187.9)
-
Step 500
500
#669490
oklch(63.2% 0.05 189.2)
-
Step 600
600 (this color)
#437571
oklch(52.6% 0.055 189.1)
-
Step 700
700
#3D6A67
oklch(49.1% 0.05 190.2)
-
Step 800
800
#325754
oklch(42.8% 0.043 189.1)
-
Step 900
900
#2D4745
oklch(37.6% 0.032 189.8)
-
Step 950
950
#1B2A28
oklch(27.1% 0.021 185.7)
#437571 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) | #707071 | 0.058 |
| Deuteranopia (no green cones) | #676A72 | 0.054 |
| Tritanopia (no blue cones) | #2E7774 | 0.018 |
| Achromatopsia (no color) | #6C6C6C | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #437571
#437571
oklch(52.6% 0.055 189.1)
- #875E64
#875E64
oklch(52.7% 0.054 9.4)
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 #437571, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.035
- Deep Aqua #08787F ΔE 0.036
- Deep Turquoise #017374 ΔE 0.039
- Dark Aquamarine #017371 ΔE 0.039
- Teal #008080 ΔE 0.042
- Slate #516572 ΔE 0.051
- Metallic Blue #4F738E ΔE 0.052
- Dim Gray #696969 ΔE 0.055
Use #437571 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.