#747C99
Closest named color: Lavender Gray (#7E7F9A). oklch(59% 0.045 272.9), rgb(116, 124, 153).
Aa
Black text reads best on this color (5.08:1).
About this color
#747C99 is a medium-dark, muted blue. In OKLCH its lightness is 59%, its chroma 0.045 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Lavender Gray (#7E7F9A), ΔE 0.018 away. Black text reads best on it, at 5.08:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Lavender Gray (#7E7F9A) |
| Black text | 5.08:1 |
| White text | 4.12:1 |
Values
| HEX | #747C99 |
| RGB | rgb(116, 124, 153) |
| HSL | hsl(227, 15%, 53%) |
| OKLCH | oklch(59% 0.045 272.9) |
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 #747C99 | 4.12:1 | AA large text | Lc -73.9 | Content text, not long reading |
| Black text on #747C99 | 5.08:1 | AA | Lc 35.7 | Non-text elements, placeholder text |
| #747C99 text on white | 4.12:1 | AA large text | Lc 68.4 | Content text, not long reading |
| #747C99 text on black | 5.08:1 | AA | Lc -33.3 | Non-text elements, placeholder text |
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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E8EAEE
oklch(93.7% 0.006 264.5)
-
Step 200
200
#D6D9E1
oklch(88.5% 0.011 269.5)
-
Step 300
300
#BCC0CE
oklch(80.9% 0.02 273.2)
-
Step 400
400
#99A0B6
oklch(70.7% 0.033 271.5)
-
Step 500
500
#8188A3
oklch(63% 0.041 273.7)
-
Step 600
600 (this color)
#747C99
oklch(59% 0.045 272.9)
-
Step 700
700
#585F79
oklch(49% 0.043 273)
-
Step 800
800
#484E63
oklch(42.7% 0.036 272.4)
-
Step 900
900
#3D4150
oklch(37.8% 0.026 273.4)
-
Step 950
950
#23262F
oklch(26.9% 0.017 270.7)
#747C99 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) | #747E9A | 0.006 |
| Deuteranopia (no green cones) | #717B98 | 0.005 |
| Tritanopia (no blue cones) | #6B8186 | 0.040 |
| Achromatopsia (no color) | #7D7D7D | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #747C99
#747C99
oklch(59% 0.045 272.9)
- #877D5F
#877D5F
oklch(59.1% 0.045 91.8)
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 #747C99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lavender Gray #7E7F9A ΔE 0.018
- Slate Gray #708090 ΔE 0.022
- Steel #738595 ΔE 0.029
- Grey Blue #647D8E ΔE 0.030
- Steel Grey #6F828A ΔE 0.034
- Battleship Grey #6B7C85 ΔE 0.035
- Light Slate Gray #778899 ΔE 0.036
- Grey Purple #826D8C ΔE 0.043
Use #747C99 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.