#2E4E5B
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40.5% 0.044 225.9), rgb(46, 78, 91).
Aa
White text reads best on this color (8.90:1).
About this color
#2E4E5B is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.044 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.022 away. White text reads best on it, at 8.90:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.35:1 |
| White text | 8.90:1 |
Values
| HEX | #2E4E5B |
| RGB | rgb(46, 78, 91) |
| HSL | hsl(197, 33%, 27%) |
| OKLCH | oklch(40.5% 0.044 225.9) |
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 #2E4E5B | 8.90:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #2E4E5B | 2.35:1 | Fails | Lc 13.6 | Not readable |
| #2E4E5B text on white | 8.90:1 | AAA | Lc 90.3 | Preferred for body text |
| #2E4E5B text on black | 2.35:1 | Fails | Lc -11.9 | 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
#D0DBE0
oklch(88.5% 0.014 226.6)
-
Step 300
300
#B0C4CD
oklch(80.8% 0.025 226.6)
-
Step 400
400
#86A6B4
oklch(70.6% 0.041 226.3)
-
Step 500
500
#6790A2
oklch(63% 0.053 227)
-
Step 600
600
#4E7A8D
oklch(55.5% 0.057 227.1)
-
Step 700
700
#3F6778
oklch(49.1% 0.053 226.9)
-
Step 800
800 (this color)
#2E4E5B
oklch(40.5% 0.044 225.9)
-
Step 900
900
#2E464F
oklch(37.8% 0.033 223.4)
-
Step 950
950
#1B292E
oklch(27% 0.021 222)
#2E4E5B 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) | #474D5C | 0.034 |
| Deuteranopia (no green cones) | #40475B | 0.031 |
| Tritanopia (no blue cones) | #195252 | 0.030 |
| Achromatopsia (no color) | #4A4A4A | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2E4E5B
#2E4E5B
oklch(40.5% 0.044 225.9)
- #5D4235
#5D4235
oklch(40.5% 0.043 46.7)
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 #2E4E5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.022
- Dark Grey Blue #29465B ΔE 0.028
- Charcoal #264653 ΔE 0.029
- Deep Teal #00555A ΔE 0.035
- Dark Teal #014D4E ΔE 0.042
- Charcoal Grey #3C4142 ΔE 0.050
- Dark Blue Green #005249 ΔE 0.050
- Petrol #005F6A ΔE 0.054
Use #2E4E5B 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.