#337374
Closest named color: Deep Turquoise (#017374). oklch(51.4% 0.065 196.7), rgb(51, 115, 116).
Aa
White text reads best on this color (5.46:1).
About this color
#337374 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 51%, its chroma 0.065 and its hue 197°. 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 5.46:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Deep Turquoise (#017374) |
| Black text | 3.84:1 |
| White text | 5.46:1 |
Values
| HEX | #337374 |
| RGB | rgb(51, 115, 116) |
| HSL | hsl(181, 39%, 33%) |
| OKLCH | oklch(51.4% 0.065 196.7) |
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 #337374 | 5.46:1 | AA | Lc -82.4 | Fine for body text |
| Black text on #337374 | 3.84:1 | AA large text | Lc 27.0 | Dividers and decoration only |
| #337374 text on white | 5.46:1 | AA | Lc 77.1 | Fine for body text |
| #337374 text on black | 3.84:1 | AA large text | Lc -24.7 | 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
#AAC7C7
oklch(80.8% 0.031 196.6)
-
Step 400
400
#7BABAB
oklch(70.7% 0.051 196.1)
-
Step 500
500
#579697
oklch(63.1% 0.065 196.9)
-
Step 600
600
#3A8081
oklch(55.6% 0.07 196.6)
-
Step 700
700 (this color)
#337374
oklch(51.4% 0.065 196.7)
-
Step 800
800
#265859
oklch(42.7% 0.054 197.1)
-
Step 900
900
#244949
oklch(37.8% 0.042 195.5)
-
Step 950
950
#162B2B
oklch(27.2% 0.027 195.7)
#337374 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) | #6C6E74 | 0.068 |
| Deuteranopia (no green cones) | #616674 | 0.063 |
| Tritanopia (no blue cones) | #007673 | 0.024 |
| Achromatopsia (no color) | #696969 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337374
#337374
oklch(51.4% 0.065 196.7)
- #89585A
#89585A
oklch(51.5% 0.065 16.9)
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 #337374, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Turquoise #017374 ΔE 0.023
- Deep Aqua #08787F ΔE 0.024
- Dark Aquamarine #017371 ΔE 0.025
- Bluegreen #017A79 ΔE 0.027
- Teal #008080 ΔE 0.040
- Dark Aqua #05696B ΔE 0.044
- Ocean #017B92 ΔE 0.047
- Slate #516572 ΔE 0.050
Use #337374 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.