#307B6A
Closest named color: Bluegreen (#017A79). oklch(53.1% 0.079 175.7), rgb(48, 123, 106).
Aa
White text reads best on this color (5.03:1).
About this color
#307B6A is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.079 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.029 away. White text reads best on it, at 5.03:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.16:1 |
| White text | 5.03:1 |
Values
| HEX | #307B6A |
| RGB | rgb(48, 123, 106) |
| HSL | hsl(166, 44%, 34%) |
| OKLCH | oklch(53.1% 0.079 175.7) |
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 #307B6A | 5.03:1 | AA | Lc -80.0 | Fine for body text |
| Black text on #307B6A | 4.16:1 | AA large text | Lc 29.5 | Dividers and decoration only |
| #307B6A text on white | 5.03:1 | AA | Lc 74.6 | Content text, not long reading |
| #307B6A text on black | 4.16:1 | AA large text | Lc -27.1 | 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
#CCDED8
oklch(88.5% 0.021 173.9)
-
Step 300
300
#AAC9BF
oklch(81% 0.036 173.9)
-
Step 400
400
#7BAD9F
oklch(70.8% 0.057 175.3)
-
Step 500
500
#569887
oklch(63.1% 0.073 175.3)
-
Step 600
600 (this color)
#307B6A
oklch(53.1% 0.079 175.7)
-
Step 700
700
#2A6E5F
oklch(49% 0.073 176.1)
-
Step 800
800
#245A4D
oklch(42.7% 0.061 175)
-
Step 900
900
#234A40
oklch(37.7% 0.048 174.9)
-
Step 950
950
#152B26
oklch(26.9% 0.03 177.6)
#307B6A 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) | #777469 | 0.083 |
| Deuteranopia (no green cones) | #6B6B6B | 0.079 |
| Tritanopia (no blue cones) | #007D76 | 0.023 |
| Achromatopsia (no color) | #6F6F6F | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #307B6A
#307B6A
oklch(53.1% 0.079 175.7)
- #90586E
#90586E
oklch(53% 0.079 355)
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 #307B6A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.029
- Teal #008080 ΔE 0.034
- Dark Aquamarine #017371 ΔE 0.038
- Deep Aqua #08787F ΔE 0.040
- Deep Turquoise #017374 ΔE 0.040
- Dark Cyan #008B8B ΔE 0.057
- Dark Sage #598556 ΔE 0.062
- Ocean #017B92 ΔE 0.064
Use #307B6A 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.