#4A7181
Closest named color: Metallic Blue (#4F738E). oklch(52.6% 0.051 225.7), rgb(74, 113, 129).
Aa
White text reads best on this color (5.28:1).
About this color
#4A7181 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 53%, its chroma 0.051 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.022 away. White text reads best on it, at 5.28:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 3.97:1 |
| White text | 5.28:1 |
Values
| HEX | #4A7181 |
| RGB | rgb(74, 113, 129) |
| HSL | hsl(197, 27%, 40%) |
| OKLCH | oklch(52.6% 0.051 225.7) |
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 #4A7181 | 5.28:1 | AA | Lc -81.6 | Fine for body text |
| Black text on #4A7181 | 3.97:1 | AA large text | Lc 27.8 | Dividers and decoration only |
| #4A7181 text on white | 5.28:1 | AA | Lc 76.2 | Fine for body text |
| #4A7181 text on black | 3.97:1 | AA large text | Lc -25.5 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#D1DBDF
oklch(88.5% 0.012 223.5)
-
Step 300
300
#B2C4CC
oklch(80.9% 0.023 226.2)
-
Step 400
400
#89A6B2
oklch(70.7% 0.037 224.9)
-
Step 500
500
#6B909F
oklch(63.1% 0.047 224.9)
-
Step 600
600 (this color)
#4A7181
oklch(52.6% 0.051 225.7)
-
Step 700
700
#436775
oklch(49.2% 0.047 224.4)
-
Step 800
800
#37545F
oklch(42.8% 0.039 223.7)
-
Step 900
900
#30454E
oklch(37.7% 0.03 226.3)
-
Step 950
950
#1C292E
oklch(27.1% 0.02 223.6)
#4A7181 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) | #686F82 | 0.039 |
| Deuteranopia (no green cones) | #606981 | 0.035 |
| Tritanopia (no blue cones) | #347676 | 0.035 |
| Achromatopsia (no color) | #6C6C6C | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A7181
#4A7181
oklch(52.6% 0.051 225.7)
- #846252
#846252
oklch(52.7% 0.051 46.3)
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 #4A7181, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.022
- Slate #516572 ΔE 0.037
- Dull Blue #49759C ΔE 0.042
- Cerulean #457B9D ΔE 0.046
- Deep Aqua #08787F ΔE 0.046
- Stormy Blue #507B9C ΔE 0.047
- Battleship Gray #6C757D ΔE 0.047
- Ocean #017B92 ΔE 0.048
Use #4A7181 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.