#307678
Closest named color: Deep Aqua (#08787F). oklch(52.3% 0.069 197.8), rgb(48, 118, 120).
Aa
White text reads best on this color (5.26:1).
About this color
#307678 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.069 and its hue 198°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.019 away. White text reads best on it, at 5.26:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 3.98:1 |
| White text | 5.26:1 |
Values
| HEX | #307678 |
| RGB | rgb(48, 118, 120) |
| HSL | hsl(182, 43%, 33%) |
| OKLCH | oklch(52.3% 0.069 197.8) |
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 #307678 | 5.26:1 | AA | Lc -81.3 | Fine for body text |
| Black text on #307678 | 3.98:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #307678 text on white | 5.26:1 | AA | Lc 75.9 | Fine for body text |
| #307678 text on black | 3.98:1 | AA large text | Lc -25.8 | 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
#A8C8C8
oklch(80.9% 0.034 196.5)
-
Step 400
400
#78ABAD
oklch(70.6% 0.054 199.1)
-
Step 500
500
#539698
oklch(63% 0.068 198.1)
-
Step 600
600
#348183
oklch(55.7% 0.075 197.6)
-
Step 700
700 (this color)
#307678
oklch(52.3% 0.069 197.8)
-
Step 800
800
#21595A
oklch(42.8% 0.058 196.8)
-
Step 900
900
#21494A
oklch(37.7% 0.045 197.6)
-
Step 950
950
#142B2B
oklch(27% 0.029 195.6)
#307678 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) | #6E7178 | 0.071 |
| Deuteranopia (no green cones) | #636878 | 0.067 |
| Tritanopia (no blue cones) | #007A76 | 0.023 |
| Achromatopsia (no color) | #6C6C6C | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #307678
#307678
oklch(52.3% 0.069 197.8)
- #8D595B
#8D595B
oklch(52.2% 0.069 17.2)
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 #307678, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.019
- Bluegreen #017A79 ΔE 0.021
- Deep Turquoise #017374 ΔE 0.025
- Dark Aquamarine #017371 ΔE 0.027
- Teal #008080 ΔE 0.031
- Ocean #017B92 ΔE 0.041
- Dark Aqua #05696B ΔE 0.051
- Sea Blue #047495 ΔE 0.051
Use #307678 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.