#497491
Closest named color: Metallic Blue (#4F738E). oklch(54% 0.066 239.2), rgb(73, 116, 145).
Aa
White text reads best on this color (5.01:1).
About this color
#497491 is a medium-dark, muted blue. In OKLCH its lightness is 54%, its chroma 0.066 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.007 away. White text reads best on it, at 5.01:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.19:1 |
| White text | 5.01:1 |
Values
| HEX | #497491 |
| RGB | rgb(73, 116, 145) |
| HSL | hsl(204, 33%, 43%) |
| OKLCH | oklch(54% 0.066 239.2) |
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 #497491 | 5.01:1 | AA | Lc -80.0 | Fine for body text |
| Black text on #497491 | 4.19:1 | AA large text | Lc 29.5 | Dividers and decoration only |
| #497491 text on white | 5.01:1 | AA | Lc 74.6 | Content text, not long reading |
| #497491 text on black | 4.19:1 | AA large text | Lc -27.2 | 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
#D0DBE3
oklch(88.5% 0.016 239.1)
-
Step 300
300
#B0C4D2
oklch(81% 0.029 238.3)
-
Step 400
400
#86A5BB
oklch(70.6% 0.047 239.2)
-
Step 500
500
#678FAB
oklch(63.1% 0.061 239.5)
-
Step 600
600 (this color)
#497491
oklch(54% 0.066 239.2)
-
Step 700
700
#3E6680
oklch(49.2% 0.062 238.3)
-
Step 800
800
#345368
oklch(42.7% 0.051 239.2)
-
Step 900
900
#2E4555
oklch(37.8% 0.04 239.5)
-
Step 950
950
#1B2831
oklch(26.9% 0.025 239.1)
#497491 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) | #677492 | 0.038 |
| Deuteranopia (no green cones) | #5D6C91 | 0.032 |
| Tritanopia (no blue cones) | #267B7E | 0.052 |
| Achromatopsia (no color) | #6F6F6F | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #497491
#497491
oklch(54% 0.066 239.2)
- #8B6547
#8B6547
oklch(53.9% 0.066 59.1)
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 #497491, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.007
- Dull Blue #49759C ΔE 0.017
- Cerulean #457B9D ΔE 0.024
- Stormy Blue #507B9C ΔE 0.026
- Muted Blue #3B719F ΔE 0.029
- Flat Blue #3C73A8 ΔE 0.039
- Sea Blue #047495 ΔE 0.042
- Ocean #017B92 ΔE 0.043
Use #497491 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.