#337B69
Closest named color: Bluegreen (#017A79). oklch(53.2% 0.078 174.2), rgb(51, 123, 105).
Aa
White text reads best on this color (5.02:1).
About this color
#337B69 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.078 and its hue 174°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.032 away. White text reads best on it, at 5.02:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.17:1 |
| White text | 5.02:1 |
Values
| HEX | #337B69 |
| RGB | rgb(51, 123, 105) |
| HSL | hsl(165, 41%, 34%) |
| OKLCH | oklch(53.2% 0.078 174.2) |
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 #337B69 | 5.02:1 | AA | Lc -79.9 | Fine for body text |
| Black text on #337B69 | 4.17:1 | AA large text | Lc 29.5 | Dividers and decoration only |
| #337B69 text on white | 5.02:1 | AA | Lc 74.5 | Content text, not long reading |
| #337B69 text on black | 4.17:1 | AA large text | Lc -27.2 | 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
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CDDED8
oklch(88.6% 0.02 172.7)
-
Step 300
300
#AAC8BF
oklch(80.8% 0.035 175.4)
-
Step 400
400
#7CAC9E
oklch(70.6% 0.055 174.7)
-
Step 500
500
#589886
oklch(63.1% 0.072 173.9)
-
Step 600
600 (this color)
#337B69
oklch(53.2% 0.078 174.2)
-
Step 700
700
#2C6E5E
oklch(49.1% 0.072 174.7)
-
Step 800
800
#265A4D
oklch(42.8% 0.06 174.6)
-
Step 900
900
#244A40
oklch(37.8% 0.047 174.5)
-
Step 950
950
#162B25
oklch(26.9% 0.03 173.8)
#337B69 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) | #777468 | 0.081 |
| Deuteranopia (no green cones) | #6C6C6A | 0.077 |
| Tritanopia (no blue cones) | #047C76 | 0.025 |
| Achromatopsia (no color) | #6F6F6F | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337B69
#337B69
oklch(53.2% 0.078 174.2)
- #90596F
#90596F
oklch(53.2% 0.078 354.5)
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 #337B69, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.032
- Teal #008080 ΔE 0.036
- Dark Aquamarine #017371 ΔE 0.040
- Deep Aqua #08787F ΔE 0.042
- Deep Turquoise #017374 ΔE 0.042
- Dark Cyan #008B8B ΔE 0.058
- Dark Sage #598556 ΔE 0.060
- Sea Green #2E8B57 ΔE 0.064
Use #337B69 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.