#30665B
Closest named color: Dark Green Blue (#1F6357). oklch(47% 0.061 178.5), rgb(48, 102, 91).
Aa
White text reads best on this color (6.60:1).
About this color
#30665B is a medium-dark, muted teal or cyan. In OKLCH its lightness is 47%, its chroma 0.061 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.019 away. White text reads best on it, at 6.60:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.17:1 |
| White text | 6.60:1 |
Values
| HEX | #30665B |
| RGB | rgb(48, 102, 91) |
| HSL | hsl(168, 36%, 29%) |
| OKLCH | oklch(47% 0.061 178.5) |
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 #30665B | 6.60:1 | AA | Lc -87.6 | Fine for body text |
| Black text on #30665B | 3.17:1 | AA large text | Lc 21.5 | Dividers and decoration only |
| #30665B text on white | 6.60:1 | AA | Lc 82.5 | Fine for body text |
| #30665B text on black | 3.17:1 | AA large text | Lc -19.4 | 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 700.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECEA
oklch(93.6% 0.009 179.6)
-
Step 200
200
#CEDDD9
oklch(88.5% 0.017 178.2)
-
Step 300
300
#ADC7C1
oklch(80.8% 0.029 180.1)
-
Step 400
400
#81ABA1
oklch(70.8% 0.048 178.6)
-
Step 500
500
#60968A
oklch(63.2% 0.06 178.6)
-
Step 600
600
#458074
oklch(55.6% 0.065 179.1)
-
Step 700
700 (this color)
#30665B
oklch(47% 0.061 178.5)
-
Step 800
800
#2E584F
oklch(42.7% 0.05 178.3)
-
Step 900
900
#294942
oklch(37.8% 0.04 178.5)
-
Step 950
950
#192A26
oklch(26.9% 0.024 178)
#30665B 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) | #62605B | 0.064 |
| Deuteranopia (no green cones) | #5A5A5C | 0.062 |
| Tritanopia (no blue cones) | #166763 | 0.019 |
| Achromatopsia (no color) | #5D5D5D | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #30665B
#30665B
oklch(47% 0.061 178.5)
- #774C5A
#774C5A
oklch(46.9% 0.061 358.6)
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 #30665B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.019
- Dark Aqua #05696B ΔE 0.029
- Dark Aquamarine #017371 ΔE 0.045
- Petrol #005F6A ΔE 0.046
- Deep Turquoise #017374 ΔE 0.047
- Slate #516572 ΔE 0.057
- Pine #2B5D34 ΔE 0.059
- Spruce #0A5F38 ΔE 0.064
Use #30665B 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.