#738FA9
Closest named color: Silver Lake Blue (#778DA9). oklch(63.8% 0.05 246.7), rgb(115, 143, 169).
Aa
Black text reads best on this color (6.23:1).
About this color
#738FA9 is a medium-light, muted blue. In OKLCH its lightness is 64%, its chroma 0.050 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Silver Lake Blue (#778DA9), ΔE 0.007 away. Black text reads best on it, at 6.23:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Silver Lake Blue (#778DA9) |
| Black text | 6.23:1 |
| White text | 3.37:1 |
Values
| HEX | #738FA9 |
| RGB | rgb(115, 143, 169) |
| HSL | hsl(209, 24%, 56%) |
| OKLCH | oklch(63.8% 0.05 246.7) |
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 #738FA9 | 3.37:1 | AA large text | Lc -66.6 | Content text, not long reading |
| Black text on #738FA9 | 6.23:1 | AA | Lc 42.9 | Non-text elements, placeholder text |
| #738FA9 text on white | 3.37:1 | AA large text | Lc 61.1 | Content text, not long reading |
| #738FA9 text on black | 6.23:1 | AA | Lc -40.6 | 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 500.
-
Step 50
50
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D2DAE2
oklch(88.5% 0.014 248)
-
Step 300
300
#B4C3D0
oklch(81% 0.025 244.2)
-
Step 400
400
#8DA3B8
oklch(70.6% 0.04 247.1)
-
Step 500
500 (this color)
#738FA9
oklch(63.8% 0.05 246.7)
-
Step 600
600
#597792
oklch(55.7% 0.055 246.1)
-
Step 700
700
#49647C
oklch(49.2% 0.05 245.9)
-
Step 800
800
#3C5165
oklch(42.6% 0.042 247.6)
-
Step 900
900
#334352
oklch(37.5% 0.033 247.1)
-
Step 950
950
#1E2830
oklch(27.1% 0.02 242.7)
#738FA9 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) | #858FAA | 0.024 |
| Deuteranopia (no green cones) | #7E89A9 | 0.021 |
| Tritanopia (no blue cones) | #629597 | 0.043 |
| Achromatopsia (no color) | #8C8C8C | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #738FA9
#738FA9
oklch(63.8% 0.05 246.7)
- #A1866B
#A1866B
oklch(63.8% 0.051 66.7)
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 #738FA9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Silver Lake Blue #778DA9 ΔE 0.007
- Blue Grey #758DA3 ΔE 0.009
- Light Slate Gray #778899 ΔE 0.026
- Faded Blue #658CBB ΔE 0.035
- Steel #738595 ΔE 0.035
- Dusty Blue #5A86AD ΔE 0.043
- Lavender Gray #7E7F9A ΔE 0.045
- Cool Gray #8D99AE ΔE 0.047
Use #738FA9 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.