#307373
Closest named color: Deep Turquoise (#017374). oklch(51.3% 0.067 195.3), rgb(48, 115, 115).
Aa
White text reads best on this color (5.48:1).
About this color
#307373 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 51%, its chroma 0.067 and its hue 195°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Turquoise (#017374), ΔE 0.021 away. White text reads best on it, at 5.48:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Deep Turquoise (#017374) |
| Black text | 3.82:1 |
| White text | 5.48:1 |
Values
| HEX | #307373 |
| RGB | rgb(48, 115, 115) |
| HSL | hsl(180, 41%, 32%) |
| OKLCH | oklch(51.3% 0.067 195.3) |
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 #307373 | 5.48:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #307373 | 3.82:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #307373 text on white | 5.48:1 | AA | Lc 77.2 | Fine for body text |
| #307373 text on black | 3.82:1 | AA large text | Lc -24.6 | 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
#CCDDDD
oklch(88.5% 0.018 196.8)
-
Step 300
300
#A9C8C7
oklch(81% 0.033 194.1)
-
Step 400
400
#7AABAB
oklch(70.7% 0.052 196)
-
Step 500
500
#559696
oklch(63% 0.067 195.6)
-
Step 600
600
#378181
oklch(55.7% 0.073 195.3)
-
Step 700
700 (this color)
#307373
oklch(51.3% 0.067 195.3)
-
Step 800
800
#245959
oklch(42.9% 0.056 195.3)
-
Step 900
900
#234949
oklch(37.8% 0.043 195.5)
-
Step 950
950
#152B2B
oklch(27.1% 0.028 195.6)
#307373 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) | #6C6E73 | 0.070 |
| Deuteranopia (no green cones) | #616674 | 0.065 |
| Tritanopia (no blue cones) | #007673 | 0.021 |
| Achromatopsia (no color) | #696969 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #307373
#307373
oklch(51.3% 0.067 195.3)
- #89575A
#89575A
oklch(51.3% 0.067 15.7)
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 #307373, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Turquoise #017374 ΔE 0.021
- Dark Aquamarine #017371 ΔE 0.022
- Deep Aqua #08787F ΔE 0.024
- Bluegreen #017A79 ΔE 0.025
- Teal #008080 ΔE 0.039
- Dark Aqua #05696B ΔE 0.042
- Ocean #017B92 ΔE 0.048
- Slate #516572 ΔE 0.051
Use #307373 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.