#337073
Closest named color: Deep Turquoise (#017374). oklch(50.6% 0.063 199.7), rgb(51, 112, 115).
Aa
White text reads best on this color (5.66:1).
About this color
#337073 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 51%, its chroma 0.063 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Turquoise (#017374), ΔE 0.023 away. White text reads best on it, at 5.66:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Deep Turquoise (#017374) |
| Black text | 3.70:1 |
| White text | 5.66:1 |
Values
| HEX | #337073 |
| RGB | rgb(51, 112, 115) |
| HSL | hsl(183, 39%, 33%) |
| OKLCH | oklch(50.6% 0.063 199.7) |
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 #337073 | 5.66:1 | AA | Lc -83.4 | Fine for body text |
| Black text on #337073 | 3.70:1 | AA large text | Lc 25.9 | Dividers and decoration only |
| #337073 text on white | 5.66:1 | AA | Lc 78.2 | Fine for body text |
| #337073 text on black | 3.70:1 | AA large text | Lc -23.6 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CDDDDD
oklch(88.6% 0.017 196.8)
-
Step 300
300
#ABC7C8
oklch(80.9% 0.03 199.2)
-
Step 400
400
#7DAAAC
oklch(70.6% 0.048 199.6)
-
Step 500
500
#5A9598
oklch(63.1% 0.062 199.9)
-
Step 600
600
#3D7F83
oklch(55.5% 0.067 200.7)
-
Step 700
700 (this color)
#337073
oklch(50.6% 0.063 199.7)
-
Step 800
800
#28585A
oklch(42.8% 0.052 199)
-
Step 900
900
#25484A
oklch(37.6% 0.041 200.4)
-
Step 950
950
#172A2B
oklch(26.9% 0.025 200)
#337073 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) | #696B73 | 0.065 |
| Deuteranopia (no green cones) | #5E6473 | 0.059 |
| Tritanopia (no blue cones) | #007471 | 0.026 |
| Achromatopsia (no color) | #676767 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337073
#337073
oklch(50.6% 0.063 199.7)
- #855656
#855656
oklch(50.5% 0.063 19.5)
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 #337073, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Turquoise #017374 ΔE 0.023
- Dark Aquamarine #017371 ΔE 0.025
- Deep Aqua #08787F ΔE 0.029
- Bluegreen #017A79 ΔE 0.033
- Dark Aqua #05696B ΔE 0.037
- Slate #516572 ΔE 0.044
- Teal #008080 ΔE 0.048
- Ocean #017B92 ΔE 0.051
Use #337073 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.