#2F4E5D
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40.6% 0.045 230.2), rgb(47, 78, 93).
Aa
White text reads best on this color (8.86:1).
About this color
#2F4E5D is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.045 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.025 away. White text reads best on it, at 8.86:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.36:1 |
| White text | 8.86:1 |
Values
| HEX | #2F4E5D |
| RGB | rgb(47, 78, 93) |
| HSL | hsl(200, 33%, 27%) |
| OKLCH | oklch(40.6% 0.045 230.2) |
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 #2F4E5D | 8.86:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #2F4E5D | 2.36:1 | Fails | Lc 13.8 | Not readable |
| #2F4E5D text on white | 8.86:1 | AAA | Lc 90.2 | Preferred for body text |
| #2F4E5D text on black | 2.36:1 | Fails | Lc -12.1 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#D0DBE1
oklch(88.5% 0.015 231.2)
-
Step 300
300
#B0C4CE
oklch(80.8% 0.026 229.2)
-
Step 400
400
#87A6B6
oklch(70.7% 0.041 230.5)
-
Step 500
500
#6890A4
oklch(63.1% 0.053 230.3)
-
Step 600
600
#4F7A8F
oklch(55.6% 0.058 230.2)
-
Step 700
700
#3F677A
oklch(49.2% 0.054 229.8)
-
Step 800
800 (this color)
#2F4E5D
oklch(40.6% 0.045 230.2)
-
Step 900
900
#2E4551
oklch(37.7% 0.035 231.6)
-
Step 950
950
#1B292F
oklch(27.1% 0.022 226.4)
#2F4E5D 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) | #464D5E | 0.031 |
| Deuteranopia (no green cones) | #40485D | 0.028 |
| Tritanopia (no blue cones) | #1A5253 | 0.032 |
| Achromatopsia (no color) | #4A4A4A | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4E5D
#2F4E5D
oklch(40.6% 0.045 230.2)
- #5D4233
#5D4233
oklch(40.5% 0.045 50.1)
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 #2F4E5D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.025
- Dark Grey Blue #29465B ΔE 0.028
- Charcoal #264653 ΔE 0.031
- Deep Teal #00555A ΔE 0.037
- Dark Teal #014D4E ΔE 0.045
- Charcoal Grey #3C4142 ΔE 0.052
- Dark Blue Green #005249 ΔE 0.054
- Petrol #005F6A ΔE 0.054
Use #2F4E5D 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.