#30585C
Closest named color: Dark Slate Gray (#2F4F4F). oklch(43.3% 0.046 203.9), rgb(48, 88, 92).
Aa
White text reads best on this color (7.84:1).
About this color
#30585C is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.046 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.031 away. White text reads best on it, at 7.84:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.67:1 |
| White text | 7.84:1 |
Values
| HEX | #30585C |
| RGB | rgb(48, 88, 92) |
| HSL | hsl(185, 31%, 27%) |
| OKLCH | oklch(43.3% 0.046 203.9) |
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 #30585C | 7.84:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #30585C | 2.67:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #30585C text on white | 7.84:1 | AAA | Lc 87.1 | Fine for body text |
| #30585C text on black | 2.67:1 | Fails | Lc -15.0 | Not readable |
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 800.
-
Step 50
50
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4EBEC
oklch(93.5% 0.008 207.1)
-
Step 200
200
#CFDCDD
oklch(88.5% 0.014 202.4)
-
Step 300
300
#AEC6C8
oklch(80.9% 0.026 202.8)
-
Step 400
400
#82A9AD
oklch(70.8% 0.043 204)
-
Step 500
500
#619399
oklch(63% 0.054 205.4)
-
Step 600
600
#467E83
oklch(55.7% 0.06 203)
-
Step 700
700
#376A6F
oklch(49.1% 0.055 203.8)
-
Step 800
800 (this color)
#30585C
oklch(43.3% 0.046 203.9)
-
Step 900
900
#2A474A
oklch(37.6% 0.035 204.1)
-
Step 950
950
#192A2B
oklch(27.1% 0.023 200.6)
#30585C 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) | #52555C | 0.045 |
| Deuteranopia (no green cones) | #4B4F5C | 0.043 |
| Tritanopia (no blue cones) | #1A5B59 | 0.021 |
| Achromatopsia (no color) | #525252 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #30585C
#30585C
oklch(43.3% 0.046 203.9)
- #684744
#684744
oklch(43.4% 0.046 24.9)
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 #30585C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.031
- Petrol #005F6A ΔE 0.033
- Deep Teal #00555A ΔE 0.034
- Dark Green Blue #1F6357 ΔE 0.041
- Dark Blue Green #005249 ΔE 0.051
- YInMn Blue #415A77 ΔE 0.051
- Dark Aqua #05696B ΔE 0.053
- Dark Teal #014D4E ΔE 0.055
Use #30585C 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.