#4E7189
Closest named color: Metallic Blue (#4F738E). oklch(53.2% 0.055 239.1), rgb(78, 113, 137).
Aa
White text reads best on this color (5.18:1).
About this color
#4E7189 is a medium-dark, muted blue. In OKLCH its lightness is 53%, its chroma 0.055 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.009 away. White text reads best on it, at 5.18:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.04:1 |
| White text | 5.18:1 |
Values
| HEX | #4E7189 |
| RGB | rgb(78, 113, 137) |
| HSL | hsl(204, 27%, 42%) |
| OKLCH | oklch(53.2% 0.055 239.1) |
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 #4E7189 | 5.18:1 | AA | Lc -81.0 | Fine for body text |
| Black text on #4E7189 | 4.04:1 | AA large text | Lc 28.4 | Dividers and decoration only |
| #4E7189 text on white | 5.18:1 | AA | Lc 75.7 | Fine for body text |
| #4E7189 text on black | 4.04:1 | AA large text | Lc -26.1 | 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
#E6EBEE
oklch(93.7% 0.007 233.6)
-
Step 200
200
#D1DBE1
oklch(88.6% 0.014 233.8)
-
Step 300
300
#B3C3CF
oklch(80.9% 0.024 240.2)
-
Step 400
400
#8BA5B7
oklch(70.8% 0.039 238.3)
-
Step 500
500
#6D8EA5
oklch(63% 0.051 239)
-
Step 600
600 (this color)
#4E7189
oklch(53.2% 0.055 239.1)
-
Step 700
700
#45657B
oklch(49.1% 0.051 239.2)
-
Step 800
800
#395264
oklch(42.6% 0.043 240.3)
-
Step 900
900
#314451
oklch(37.6% 0.033 238.7)
-
Step 950
950
#1D2830
oklch(27% 0.021 240.1)
#4E7189 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) | #66708A | 0.031 |
| Deuteranopia (no green cones) | #5E6A89 | 0.027 |
| Tritanopia (no blue cones) | #377779 | 0.043 |
| Achromatopsia (no color) | #6D6D6D | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E7189
#4E7189
oklch(53.2% 0.055 239.1)
- #85654C
#85654C
oklch(53.3% 0.055 59.2)
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 #4E7189, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.009
- Dull Blue #49759C ΔE 0.029
- Cerulean #457B9D ΔE 0.036
- Stormy Blue #507B9C ΔE 0.037
- Muted Blue #3B719F ΔE 0.039
- Slate #516572 ΔE 0.043
- Battleship Gray #6C757D ΔE 0.047
- Grey Blue #647D8E ΔE 0.047
Use #4E7189 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.