#737DB7
Closest named color: Faded Blue (#658CBB). oklch(60.5% 0.089 275.9), rgb(115, 125, 183).
Aa
Black text reads best on this color (5.34:1).
About this color
#737DB7 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.089 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.042 away. Black text reads best on it, at 5.34:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 5.34:1 |
| White text | 3.92:1 |
Values
| HEX | #737DB7 |
| RGB | rgb(115, 125, 183) |
| HSL | hsl(231, 32%, 58%) |
| OKLCH | oklch(60.5% 0.089 275.9) |
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 #737DB7 | 3.92:1 | AA large text | Lc -72.1 | Content text, not long reading |
| Black text on #737DB7 | 5.34:1 | AA | Lc 37.4 | Non-text elements, placeholder text |
| #737DB7 text on white | 3.92:1 | AA large text | Lc 66.6 | Content text, not long reading |
| #737DB7 text on black | 5.34:1 | AA | Lc -35.0 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7E9F2
oklch(93.5% 0.012 276.1)
-
Step 200
200
#D4D8EA
oklch(88.5% 0.025 275.9)
-
Step 300
300
#B8BFDD
oklch(80.9% 0.043 275)
-
Step 400
400
#949DCC
oklch(70.6% 0.07 276)
-
Step 500
500 (this color)
#737DB7
oklch(60.5% 0.089 275.9)
-
Step 600
600
#646EAC
oklch(55.7% 0.097 275.8)
-
Step 700
700
#535C93
oklch(49.2% 0.089 275.6)
-
Step 800
800
#444B78
oklch(42.8% 0.075 276)
-
Step 900
900
#393F60
oklch(37.7% 0.057 275.4)
-
Step 950
950
#212538
oklch(27% 0.036 274.6)
#737DB7 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) | #6A83B9 | 0.019 |
| Deuteranopia (no green cones) | #667EB6 | 0.017 |
| Tritanopia (no blue cones) | #5F8892 | 0.078 |
| Achromatopsia (no color) | #808080 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #737DB7
#737DB7
oklch(60.5% 0.089 275.9)
- #92813F
#92813F
oklch(60.4% 0.089 95.1)
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 #737DB7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.042
- Off Blue #5684AE ΔE 0.044
- Dusty Blue #5A86AD ΔE 0.044
- Lavender Gray #7E7F9A ΔE 0.049
- Cool Blue #4984B8 ΔE 0.050
- Steel Blue #4682B4 ΔE 0.053
- Silver Lake Blue #778DA9 ΔE 0.056
- Blue Grey #758DA3 ΔE 0.062
Use #737DB7 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.