#497797
Closest named color: Dull Blue (#49759C). oklch(54.9% 0.071 240.2), rgb(73, 119, 151).
Aa
White text reads best on this color (4.80:1).
About this color
#497797 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.071 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Blue (#49759C), ΔE 0.011 away. White text reads best on it, at 4.80:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Dull Blue (#49759C) |
| Black text | 4.36:1 |
| White text | 4.80:1 |
Values
| HEX | #497797 |
| RGB | rgb(73, 119, 151) |
| HSL | hsl(205, 35%, 44%) |
| OKLCH | oklch(54.9% 0.071 240.2) |
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 #497797 | 4.80:1 | AA | Lc -78.7 | Fine for body text |
| Black text on #497797 | 4.36:1 | AA large text | Lc 30.8 | Non-text elements, placeholder text |
| #497797 text on white | 4.80:1 | AA | Lc 73.2 | Content text, not long reading |
| #497797 text on black | 4.36:1 | AA large text | Lc -28.4 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EBEF
oklch(93.7% 0.008 236.6)
-
Step 200
200
#CFDBE4
oklch(88.5% 0.018 240)
-
Step 300
300
#AFC4D4
oklch(81% 0.032 240.7)
-
Step 400
400
#84A5BE
oklch(70.6% 0.052 241.1)
-
Step 500
500
#658FAD
oklch(63.1% 0.065 240.1)
-
Step 600
600 (this color)
#497797
oklch(54.9% 0.071 240.2)
-
Step 700
700
#3C6683
oklch(49.2% 0.066 240.1)
-
Step 800
800
#32536A
oklch(42.7% 0.054 240.2)
-
Step 900
900
#2C4556
oklch(37.8% 0.042 239.1)
-
Step 950
950
#1A2832
oklch(26.9% 0.027 240.1)
#497797 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) | #697799 | 0.040 |
| Deuteranopia (no green cones) | #5E6E96 | 0.034 |
| Tritanopia (no blue cones) | #207F82 | 0.057 |
| Achromatopsia (no color) | #727272 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #497797
#497797
oklch(54.9% 0.071 240.2)
- #906746
#906746
oklch(54.8% 0.071 59.4)
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 #497797, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Blue #49759C ΔE 0.011
- Cerulean #457B9D ΔE 0.013
- Stormy Blue #507B9C ΔE 0.016
- Metallic Blue #4F738E ΔE 0.016
- Muted Blue #3B719F ΔE 0.029
- Flat Blue #3C73A8 ΔE 0.034
- Grey Blue #647D8E ΔE 0.042
- Ocean #017B92 ΔE 0.043
Use #497797 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.