#307688
Closest named color: Ocean (#017B92). oklch(52.9% 0.075 217.6), rgb(48, 118, 136).
Aa
White text reads best on this color (5.15:1).
About this color
#307688 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.075 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean (#017B92), ΔE 0.023 away. White text reads best on it, at 5.15:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Ocean (#017B92) |
| Black text | 4.07:1 |
| White text | 5.15:1 |
Values
| HEX | #307688 |
| RGB | rgb(48, 118, 136) |
| HSL | hsl(192, 48%, 36%) |
| OKLCH | oklch(52.9% 0.075 217.6) |
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 #307688 | 5.15:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #307688 | 4.07:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #307688 text on white | 5.15:1 | AA | Lc 75.3 | Fine for body text |
| #307688 text on black | 4.07:1 | AA large text | Lc -26.4 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECEE
oklch(93.7% 0.01 212.5)
-
Step 200
200
#CCDCE1
oklch(88.4% 0.019 218.4)
-
Step 300
300
#A9C6CF
oklch(80.8% 0.034 218.5)
-
Step 400
400
#7AA9B7
oklch(70.6% 0.054 218.2)
-
Step 500
500
#5694A5
oklch(63.1% 0.069 217.4)
-
Step 600
600 (this color)
#307688
oklch(52.9% 0.075 217.6)
-
Step 700
700
#2A6A7B
oklch(49.1% 0.07 218.3)
-
Step 800
800
#255764
oklch(42.8% 0.057 217.4)
-
Step 900
900
#234751
oklch(37.5% 0.045 218)
-
Step 950
950
#152A30
oklch(27% 0.029 218.2)
#307688 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) | #6A7389 | 0.064 |
| Deuteranopia (no green cones) | #5D6988 | 0.058 |
| Tritanopia (no blue cones) | #007C7C | 0.036 |
| Achromatopsia (no color) | #6D6D6D | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #307688
#307688
oklch(52.9% 0.075 217.6)
- #915C4C
#915C4C
oklch(52.9% 0.075 37.5)
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 #307688, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean #017B92 ΔE 0.023
- Deep Aqua #08787F ΔE 0.026
- Sea Blue #047495 ΔE 0.029
- Metallic Blue #4F738E ΔE 0.033
- Bluegreen #017A79 ΔE 0.037
- Teal #008080 ΔE 0.040
- Cerulean #457B9D ΔE 0.041
- Deep Turquoise #017374 ΔE 0.041
Use #307688 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.